What are the valid indexes for the array shown below?

Formal __________ standards make it possible to create generalized media search engines that can locate media from multiple locations.

Fill in the blank(s) with the appropriate word(s).

Identify the letter of the choice that best matches the phrase or definition.

A. How objects are placed on a slide. B. Displays one slide at a time and is useful for editing text. C. Preview your presentation as if it were showing on a slide projector. D. Displays your slides as small pictures or thumbnails. E. Displays thumbnails that you can move and arrange easily.