Case 7-1 Joseph Is Working on Several Windows at a Time

Multiple Choice

Case 7-1 Joseph is working on several windows at a time. He requires good computer skills and knowledge to be able to work on all of them efficiently.
Joseph is working on a Paint application. Once he finishes working on this application, he clicks on the
  at the right end of the title bar. Clicking this symbol will _____.

A) close the Paint window
B) clear the Paint window
C) create a thumbnail for the Paint window
D) fill the screen with the Paint window