What is the function of action buttons in PowerPoint?

Action buttons in PowerPoint serve as clickable shapes that are designed to perform specific actions when interacted with during a presentation. These actions can include navigating to another slide, opening a web page, running a program, or even playing a sound. By providing a way for users to engage with the presentation, action buttons enhance interactivity and can streamline navigation, making it easier for the audience to follow along.

While other options describe different features in PowerPoint, they do not capture the specific purpose of action buttons. Formatting text involves the use of shapes in a different context that focuses on appearance rather than functionality. Background styles and images primarily deal with the visual design of slides and do not include interactive elements. Embedding videos is a feature that allows for audiovisual content but is unrelated to the interactive navigation that action buttons provide.