What is a Slide Master? A. the placeholder used to insert objects B. the sequence of slides in a presentation C. the default design template in a presentation program D. the formatting tool with a list of common commands

Answer: Slide Master - is the top slide that controls all information about the theme, layout, background, color, fonts, and positioning of all slides.

Explanation: "Slide Master can be an easy way to adjust the look of an existing theme or make changes to all slides in your presentation".