21
(Choose 1 answer)
Choose the correct statement about UIElement in the WPF Types
A. That is a class extends the functionality provided by the UIElement, and override the layout for framework level implementations
B. None of the others
C. That is a class is the base class for shape elements like Line, Ellipse, Polygon, Path, etc
D. That is a class adds the basic functionality of layout.input, focus, and events to Ul elements and sets the basic foundation of the layout process