diff --git a/src/SIQuester/SIQuester.ViewModel/Workspaces/Dialogs/Play/AnswerOptionViewModel.cs b/src/SIQuester/SIQuester.ViewModel/Workspaces/Dialogs/Play/AnswerOptionViewModel.cs
new file mode 100644
index 00000000..86c7cd3c
--- /dev/null
+++ b/src/SIQuester/SIQuester.ViewModel/Workspaces/Dialogs/Play/AnswerOptionViewModel.cs
@@ -0,0 +1,36 @@
+using SIEngine.Core;
+using System.ComponentModel;
+using System.Runtime.CompilerServices;
+
+namespace SIQuester.ViewModel.Workspaces.Dialogs.Play;
+
+/// <summary>
+/// Defines answer option view model.
+/// </summary>
+/// <param name="Label">Option label.</param>
+/// <param name="Content">Option content.</param>
+public sealed record AnswerOptionViewModel(string Label, ContentInfo Content) : INotifyPropertyChanged
+{
+	private bool _isSelected;
+
+    /// <summary>
+    /// Is option selected.
+    /// </summary>
+	public bool IsSelected
+    {
+        get => _isSelected;
+        set
+        {
+            if (_isSelected != value)
+            {
+                _isSelected = value;
+                OnPropertyChanged();
+            }
+        }
+    }
+
+    public event PropertyChangedEventHandler? PropertyChanged;
+
+    private void OnPropertyChanged([CallerMemberName] string? propertyName = null) =>
+		PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
+}
diff --git a/src/SIQuester/SIQuester.ViewModel/Workspaces/Dialogs/Play/ContentInfo.cs b/src/SIQuester/SIQuester.ViewModel/Workspaces/Dialogs/Play/ContentInfo.cs
new file mode 100644
index 00000000..e53cda80
--- /dev/null
+++ b/src/SIQuester/SIQuester.ViewModel/Workspaces/Dialogs/Play/ContentInfo.cs
@@ -0,0 +1,8 @@
+namespace SIQuester.ViewModel.Workspaces.Dialogs.Play;
+
+/// <summary>
+/// Defines content info.
+/// </summary>
+/// <param name="Type">Content type.</param>
+/// <param name="Value">Content value.</param>
+public sealed record ContentInfo(ContentType Type, string Value);
diff --git a/src/SIQuester/SIQuester.ViewModel/Workspaces/Dialogs/Play/ContentTypes.cs b/src/SIQuester/SIQuester.ViewModel/Workspaces/Dialogs/Play/ContentType.cs
similarity index 95%
rename from src/SIQuester/SIQuester.ViewModel/Workspaces/Dialogs/Play/ContentTypes.cs
rename to src/SIQuester/SIQuester.ViewModel/Workspaces/Dialogs/Play/ContentType.cs
index e9050209..96179154 100644
--- a/src/SIQuester/SIQuester.ViewModel/Workspaces/Dialogs/Play/ContentTypes.cs
+++ b/src/SIQuester/SIQuester.ViewModel/Workspaces/Dialogs/Play/ContentType.cs
@@ -3,7 +3,7 @@
 /// <summary>
 /// Defines question table content types.
 /// </summary>
-public enum ContentTypes
+public enum ContentType
 {
     /// <summary>
     /// Empty content.
diff --git a/src/SIQuester/SIQuester.ViewModel/Workspaces/Dialogs/QuestionPlayViewModel.cs b/src/SIQuester/SIQuester.ViewModel/Workspaces/Dialogs/QuestionPlayViewModel.cs
index b65f509e..2989b938 100644
--- a/src/SIQuester/SIQuester.ViewModel/Workspaces/Dialogs/QuestionPlayViewModel.cs
+++ b/src/SIQuester/SIQuester.ViewModel/Workspaces/Dialogs/QuestionPlayViewModel.cs
@@ -1,6 +1,7 @@
 using SIEngine.Core;
 using SIPackages;
 using SIPackages.Core;
+using SIQuester.ViewModel.Workspaces.Dialogs.Play;
 using Utils.Commands;
 
 namespace SIQuester.ViewModel.Workspaces.Dialogs;
@@ -17,30 +18,12 @@ public sealed class QuestionPlayViewModel : WorkspaceViewModel, IQuestionEngineP
 
     public override string Header => Properties.Resources.QuestionPlay;
 
-    private Play.ContentTypes _contentType = Dialogs.Play.ContentTypes.None;
-
-    /// <summary>
-    /// Current question content type.
-    /// </summary>
-    public Play.ContentTypes ContentType
-    {
-        get => _contentType;
-        set
-        {
-            if (_contentType != value)
-            {
-                _contentType = value;
-                OnPropertyChanged();
-            }
-        }
-    }
-
-    private string? _content;
+    private ContentInfo[] _content = Array.Empty<ContentInfo>();
 
     /// <summary>
     /// Current question content.
     /// </summary>
-    public string? Content
+    public ContentInfo[] Content
     {
         get => _content;
         set
@@ -97,6 +80,24 @@ public string? Oral
         }
     }
 
+    private AnswerOptionViewModel[] _answerOptions = Array.Empty<AnswerOptionViewModel>();
+
+    /// <summary>
+    /// Answer options.
+    /// </summary>
+    public AnswerOptionViewModel[] AnswerOptions
+    {
+        get => _answerOptions;
+        set 
+        {
+            if (_answerOptions != value)
+            {
+                _answerOptions = value;
+                OnPropertyChanged();
+            }
+        }
+    }
+
     private bool _isAnswer;
 
     /// <summary>
@@ -157,7 +158,8 @@ public void Play_Executed(object? arg)
             _isFinished = true;
             Play.CanBeExecuted = false;
             Sound = null;
-            ContentType = Dialogs.Play.ContentTypes.None;
+            Content = Array.Empty<ContentInfo>();
+            AnswerOptions = Array.Empty<AnswerOptionViewModel>();
             return;
         }
 
@@ -167,59 +169,52 @@ public void Play_Executed(object? arg)
 
     public void OnQuestionContent(IReadOnlyCollection<ContentItem> content)
     {
+        var screenContent = new List<ContentInfo>();
+
         foreach (var contentItem in content)
         {
-            OnQuestionContentItem(contentItem);
+            switch (contentItem.Placement)
+            {
+                case ContentPlacements.Replic:
+                    Oral = contentItem.Value;
+                    break;
+
+                case ContentPlacements.Screen:
+                    switch (contentItem.Type)
+                    {
+                        case ContentTypes.Text:
+                            screenContent.Add(new ContentInfo(ContentType.Text, contentItem.Value));
+                            break;
+
+                        case ContentTypes.Image:
+                            screenContent.Add(new ContentInfo(ContentType.Image, contentItem.IsRef ? _qDocument.Images.Wrap(contentItem.Value).Uri : contentItem.Value));
+                            break;
+
+                        case ContentTypes.Video:
+                            screenContent.Add(new ContentInfo(ContentType.Video, contentItem.IsRef ? _qDocument.Video.Wrap(contentItem.Value).Uri : contentItem.Value));
+                            break;
+
+                        case ContentTypes.Html:
+                            screenContent.Add(new ContentInfo(ContentType.Html, contentItem.IsRef ? _qDocument.Html.Wrap(contentItem.Value).Uri : contentItem.Value));
+                            break;
+
+                        default:
+                            break;
+                    }
+                    break;
+
+                case ContentPlacements.Background:
+                    Sound = contentItem.IsRef ? _qDocument.Audio.Wrap(contentItem.Value).Uri : contentItem.Value;
+                    break;
+
+                default:
+                    break;
+            }
         }
-    }
 
-    public void OnQuestionContentItem(ContentItem contentItem)
-    {
-        switch (contentItem.Placement)
+        if (screenContent.Count > 0)
         {
-            case ContentPlacements.Replic:
-                Oral = contentItem.Value;
-                break;
-
-            case ContentPlacements.Screen:
-                switch (contentItem.Type)
-                {
-                    case ContentTypes.Text:
-                        Content = contentItem.Value;
-                        ContentType = Dialogs.Play.ContentTypes.Text;
-                        break;
-
-                    case ContentTypes.Image:
-                        Content = contentItem.IsRef ? _qDocument.Images.Wrap(contentItem.Value).Uri : contentItem.Value;
-                        ContentType = Dialogs.Play.ContentTypes.Image;
-                        break;
-
-                    case ContentTypes.Video:
-                        Content = contentItem.IsRef ? _qDocument.Video.Wrap(contentItem.Value).Uri : contentItem.Value;
-                        ContentType = Dialogs.Play.ContentTypes.Video;
-                        break;
-
-                    case ContentTypes.Html:
-                        Content = contentItem.IsRef ? _qDocument.Html.Wrap(contentItem.Value).Uri : contentItem.Value;
-                        ContentType = Dialogs.Play.ContentTypes.Html;
-                        break;
-
-                    default:
-                        break;
-                }
-                break;
-
-            case ContentPlacements.Background:
-                Sound = contentItem.IsRef ? _qDocument.Audio.Wrap(contentItem.Value).Uri : contentItem.Value;
-
-                if (ContentType == Dialogs.Play.ContentTypes.None)
-                {
-                    ContentType = Dialogs.Play.ContentTypes.Audio;
-                }
-                break;
-
-            default:
-                break;
+            Content = screenContent.ToArray();
         }
     }
 
@@ -264,7 +259,42 @@ public void OnAskAnswerStop()
 
     public bool OnAnnouncePrice(NumberSet? availableRange) => false;
 
-    public bool OnAnswerOptions(AnswerOption[] answerOptions) => false;
+    public bool OnAnswerOptions(AnswerOption[] answerOptions)
+    {
+        var options = new List<AnswerOptionViewModel>();
+
+        foreach (var option in answerOptions)
+        {
+            switch (option.Content.Type)
+            {
+                case ContentTypes.Text:
+                    options.Add(new AnswerOptionViewModel(option.Label, new ContentInfo(ContentType.Text, option.Content.Value)));
+                    break;
 
-    public bool OnRightAnswerOption(string rightOptionLabel) => false;
+                case ContentTypes.Image:
+                    options.Add(new AnswerOptionViewModel(option.Label, new ContentInfo(ContentType.Image, option.Content.IsRef ? _qDocument.Images.Wrap(option.Content.Value).Uri : option.Content.Value)));
+                    break;
+
+                default:
+                    break;
+            }
+        }
+
+        AnswerOptions = options.ToArray();
+        return false;
+    }
+
+    public bool OnRightAnswerOption(string rightOptionLabel)
+    {
+        foreach (var option in AnswerOptions)
+        {
+            if (option.Label == rightOptionLabel)
+            {
+                option.IsSelected = true;
+                break;
+            }
+        }
+
+        return true;
+    }
 }
diff --git a/src/SIQuester/SIQuester/View/Dialogs/QuestionPlayView.xaml b/src/SIQuester/SIQuester/View/Dialogs/QuestionPlayView.xaml
index 7048ca80..aaf5accb 100644
--- a/src/SIQuester/SIQuester/View/Dialogs/QuestionPlayView.xaml
+++ b/src/SIQuester/SIQuester/View/Dialogs/QuestionPlayView.xaml
@@ -15,15 +15,13 @@
     d:DesignWidth="800"
     d:DataContext="{d:DesignInstance vm:QuestionPlayViewModel}">
     <UserControl.Resources>
-        <lb:WebView2Behavior x:Key="WebView2Behavior" />
-
         <lc:TemplateConverter x:Key="AtomContentSelector">
             <lc:TemplateConverter.Templates>
-                <DataTemplate x:Key="{x:Static vmp:ContentTypes.None}" />
+                <DataTemplate x:Key="{x:Static vmp:ContentType.None}" />
 
-                <DataTemplate x:Key="{x:Static vmp:ContentTypes.Text}">
+                <DataTemplate x:Key="{x:Static vmp:ContentType.Text}">
                     <TextBlock
-                        Text="{Binding Content}"
+                        Text="{Binding}"
                         VerticalAlignment="Center"
                         HorizontalAlignment="Center"
                         FontSize="30"
@@ -31,11 +29,11 @@
                         TextAlignment="Center" />
                 </DataTemplate>
 
-                <DataTemplate x:Key="{x:Static vmp:ContentTypes.Image}">
-                    <Image Source="{Binding Content}" />
+                <DataTemplate x:Key="{x:Static vmp:ContentType.Image}">
+                    <Image Source="{Binding}" />
                 </DataTemplate>
 
-                <DataTemplate x:Key="{x:Static vmp:ContentTypes.Audio}">
+                <DataTemplate x:Key="{x:Static vmp:ContentType.Audio}">
                     <Grid>
                         <TextBlock
                             Text="{x:Static lp:Resources.Audio}"
@@ -44,12 +42,12 @@
                     </Grid>
                 </DataTemplate>
 
-                <DataTemplate x:Key="{x:Static vmp:ContentTypes.Video}">
-                    <MediaElement Source="{Binding Content}" LoadedBehavior="Play" />
+                <DataTemplate x:Key="{x:Static vmp:ContentType.Video}">
+                    <MediaElement Source="{Binding}" LoadedBehavior="Play" />
                 </DataTemplate>
 
-                <DataTemplate x:Key="{x:Static vmp:ContentTypes.Html}">
-                    <wv2:WebView2 Source="{Binding Content}" lb:WebView2Behavior.IsAttached="True" />
+                <DataTemplate x:Key="{x:Static vmp:ContentType.Html}">
+                    <wv2:WebView2 Source="{Binding}" lb:WebView2Behavior.IsAttached="True" />
                 </DataTemplate>
             </lc:TemplateConverter.Templates>
         </lc:TemplateConverter>
@@ -61,6 +59,7 @@
         <Grid.ColumnDefinitions>
             <ColumnDefinition Width="*" />
             <ColumnDefinition Width="3*" />
+            <ColumnDefinition Width="*" />
         </Grid.ColumnDefinitions>
 
         <Grid.RowDefinitions>
@@ -79,11 +78,28 @@
         </Border>
 
         <Border Grid.Column="1" BorderThickness="10" Background="LightGray" Padding="5" Margin="0,10,10,0">
-            <ContentControl
-                Content="{Binding}"
-                ContentTemplate="{Binding ContentType, Converter={StaticResource AtomContentSelector}}"
-                HorizontalContentAlignment="Center"
-                VerticalContentAlignment="Center" />
+            <ItemsControl
+                ItemsSource="{Binding Content}"
+                HorizontalContentAlignment="Stretch"
+                VerticalContentAlignment="Stretch">
+                <ItemsControl.ItemsPanel>
+                    <ItemsPanelTemplate>
+                        <UniformGrid Columns="1" />
+                    </ItemsPanelTemplate>
+                </ItemsControl.ItemsPanel>
+                
+                <ItemsControl.ItemTemplate>
+                    <DataTemplate>
+                        <ContentControl
+                            Content="{Binding Value}"
+                            ContentTemplate="{Binding Type, Converter={StaticResource AtomContentSelector}}"
+                            HorizontalAlignment="Stretch"
+                            VerticalAlignment="Stretch"
+                            HorizontalContentAlignment="Center" 
+                            VerticalContentAlignment="Center" />
+                    </DataTemplate>
+                </ItemsControl.ItemTemplate>
+            </ItemsControl>
 
             <Border.Style>
                 <Style TargetType="Border">
@@ -120,6 +136,36 @@
             </ContentControl.Style>
         </ContentControl>
 
+        <ItemsControl Grid.Column="2" ItemsSource="{Binding AnswerOptions}" Background="LightGray" Margin="0,10,10,0">
+            <ItemsControl.ItemTemplate>
+                <DataTemplate>
+                    <DockPanel x:Name="panel">
+                        <TextBlock Text="{Binding Label}" DockPanel.Dock="Left" VerticalAlignment="Center" FontSize="20" Margin="10,0" FontWeight="Bold" />
+
+                        <ContentControl
+                            Content="{Binding Content.Value}"
+                            ContentTemplate="{Binding Content.Type, Converter={StaticResource AtomContentSelector}}"
+                            HorizontalAlignment="Stretch"
+                            VerticalAlignment="Stretch"
+                            HorizontalContentAlignment="Center" 
+                            VerticalContentAlignment="Center" />
+                    </DockPanel>
+
+                    <DataTemplate.Triggers>
+                        <DataTrigger Binding="{Binding IsSelected}" Value="True">
+                            <Setter TargetName="panel" Property="Background" Value="Green" />
+                        </DataTrigger>
+                    </DataTemplate.Triggers>
+                </DataTemplate>
+            </ItemsControl.ItemTemplate>
+            
+            <ItemsControl.ItemsPanel>
+                <ItemsPanelTemplate>
+                    <UniformGrid Columns="1" />
+                </ItemsPanelTemplate>
+            </ItemsControl.ItemsPanel>
+        </ItemsControl>
+
         <Button
             Grid.Row="1"
             Grid.Column="1"
diff --git a/test/Common/Notions.Tests/StringAnalyzerTests.cs b/test/Common/Notions.Tests/StringAnalyzerTests.cs
index afb1450a..afdb1d78 100644
--- a/test/Common/Notions.Tests/StringAnalyzerTests.cs
+++ b/test/Common/Notions.Tests/StringAnalyzerTests.cs
@@ -8,7 +8,7 @@ internal sealed class StringAnalyzerTests
     [Test]
     public void LongestCommonSubstring_Ok()
     {
-        var match = StringAnalyzer.LongestCommonSubstring("abc", "dabe", "panb0");
+        var match = StringAnalyzer.LongestCommonSubstring("abc", "dabe", "pab0");
 
         Assert.That(match, Is.Not.Null);
 
@@ -21,7 +21,7 @@ public void LongestCommonSubstring_Ok()
         Assert.Multiple(() =>
         {
             Assert.That(match!.Value.PositionsHistory[0], Is.EqualTo(new int[] { 0, 1, 1 }));
-            Assert.That(match!.Value.PositionsHistory[1], Is.EqualTo(new int[] { 1, 2, 3 }));
+            Assert.That(match!.Value.PositionsHistory[1], Is.EqualTo(new int[] { 1, 2, 2 }));
         });
     }
 
@@ -37,6 +37,6 @@ public void LongestCommonSubstring2_Ok()
 
         Assert.That(match, Is.Not.Null);
 
-        Assert.That(match!.Value.Substring, Is.EqualTo("0. te. Answer: s"));
+        Assert.That(match!.Value.Substring, Is.EqualTo("0. Answer: s"));
     }
 }