One thing the common tasks button allows you to do is A. Apply a design template to a slide B. Insert a new slide C. Choose a new layout for a slide D. All of above

The correct answer is D. All of above.

The common tasks button is a button that appears in the upper-left corner of a slide in PowerPoint. It allows you to do a variety of things, including:

• Applying a design template to a slide. A design template is a pre-made set of colors, fonts, and layouts that you can use to give your slides a professional look.
• Inserting a new slide. A new slide can be blank, or it can be based on a pre-made layout.
• Choosing a new layout for a slide. A slide layout determines the placement of the text and objects on a slide.

The common tasks button is a convenient way to access frequently used commands. It is also a good way to learn about the different features that PowerPoint offers.