 
			 
			MCQOPTIONS
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				| 1. | Window class, onPaint/2, defines | 
| A. | is executed when a visible window is being created | 
| B. | is executed when a window is being closed, it is possible to prevent the win- dow from closing | 
| C. | when the background of a window must be erased this event is executed | 
| D. | when a window must be re-painted this event is executed | 
| Answer» E. | |