Ctrl + D is used in Powerpoint for _____?

Ctrl + D is used in Powerpoint for _____?

Explanation
Copy the selected object or text.Ctrl+C
Paste cut or copied object or text.Ctrl+V
Duplicate selected objects.Ctrl+D or Ctrl+Drag the mouse Office 2010 and Office 2007: Not available
Copy the formatting of the selected object or text.

Ctrl+Shift+C