You are designing an application by using Windows Presentation Foundation (WPF) and
Microsoft .NET Framework 4. You create a control named HelpViewer to view the Help
documentation of the application. The HelpViewer control must be available to al windows in
the application. You need to ensure that the application allows users to perform the
following tasks: • Bookmark their location in the documentation and return to the bookmark
from any window. • Hide the HelpViewer control. • Dock the HelpViewer control. You create
a main window as a base class. What should you do next?
A.
• Add the HelpViewer control to the window at runtime. • Inherit all other window classes
in the application from the main window base class.
B.
• Add the HelpViewer control to a DockPanel control at runtime. • Inherit all other window
classes in the application from the main window base class.
C.
• Add the HelpViewer control and a Frame control to a DockPanel control to the window
at runtime. • Create all other windows in the application as pages and host them in the
Frame control.
D.
• Add the HelpViewer control and a Frame control to a StackPanel control to the window
at runtime. • Create all other windows in the application as pages and host them in the
Frame control.