You are developing a Windows Store app.
The main page of the app contains a canvas container that has five TextBox controls and three
Button controls. The visibility of the buttons changes according to the data entered in the TextBox
controls.
You need to ensure that the buttons slide into place when their Visibility property is set to true.
What should you add?

A.
A RepositionThemeTransition to the canvas

B.
An EntranceThemeTransition to the canvas

C.
A DoubleAnimation to the canvas

D.
A PointAnimation to each button

Explanation:

http://msdn.microsoft.com/en-us/library/windows/apps/xaml/hh452703.aspx