问题：

[单选] You need to add a pop-up menu to the CV_EMP canvas to display when a user right-clicks the mouse within the canvas. How could you create the pop-up menu?（）

A . Use the Layout Editor to create a pop-up menu, assign commands to the menu in the Menu Editor, and attack the menu items to the canvas. 
B . Use the Report Wizard to create a pop-up menu and attack the menu items to the canvas.  
C . Alter the pop-up Menu Property value in the Property Palette of the canvas. 
D . Use the Object Navigator to create a pop-up menu, assign commands to the menu items, and attack the menu to items or canvases.