What is the best way to create another copy of a slide in PowerPoint?

A.

Click the slide then press Ctrl+A and paste in new slide

B.

From Insert Menu, choose Duplicate Slide

C.

Redo everything on a new slide that you had done on previous slide

D.

Right click on task pane, choose Duplicate Slide

E.

B and D

Correct answer is E

From Insert Menu choose Duplicate Slide in Powerpoint 2003 and earlier versions.
In Powerpoint 2007 and higher versions Right click on task pane choose Duplicate Slide.