You create a Windows client application by using Windows Presentation Foundation (WPF).
The application contains the following code fragment.
<Window.Resources>
<DataTemplate x:Key=”detail”>
<!–…–>
</DataTemplate>
</Window.Resources>
<StackPanel>
<ListBox Name=”lbDetails”>
</ListBox>
<Button Name=”btnDetails”>Details</Button>
</StackPanel>
You need to assign lbDetails to use the detail data template when btnDetails is clicked.
Which code segment should you write for the click event handler for btnDetails?

A.
lbDetails.ItemsPanel.FindName(“detail”,lbDetails);

B.
var tmpl = (ControlTemplate)FindResource(“detail”); lbDetails.Template = tmpl;

C.
var tmpl = (DataTemplate)FindName(“detail”); lbDetails.ItemTemplate = tmpl;

D.
var tmpl = (DataTemplate)FindResource(“detail”); lbDetails.ItemTemplate=tmpl;