PowerPoint design templates are stored in a file with this extension. A. .ptt B. .pot C. .ppt D. .dtp

The correct answer is: B. .pot

A PowerPoint design template is a file that contains the design elements, such as fonts, colors, and layouts, that you can use to create a new PowerPoint presentation. PowerPoint design templates are stored in files with the extension .pot.

Option A, .ppt, is the extension for PowerPoint presentation files. Option C, .pptx, is the extension for PowerPoint presentation files that are saved in the newer Open XML format. Option D, .dtp, is the extension for desktop publishing files.