Which event should you use?

You create an application that provide accessibility features. Your standard forms display a background image. When the user selects Use High Constrast in the Accessibility Options in Control Panel, you want this image to be removed. You need to add an event to handle this accessibility setting change. Which event should you use?

A.
this.StyleChanged

B.
SystemEvents.UserPreferenceChanged

C.
this.ChangeUICues

D.
SystemEvents.DisplaySettingsChanged