How do you add transition effects to your slides in PowerPoint?

To add transition effects to your slides in PowerPoint, the correct approach is to select the 'Transitions' tab and choose from various transition options available. This tab specifically focuses on how one slide changes to the next during the presentation, allowing users to apply dynamic effects that enhance the flow of the slideshow.

When in the Transitions tab, you can explore a variety of effects such as fades, pushes, wipes, and many others. Each effect can be customized further with options for duration and sound, providing a tailored experience for your audience. This is essential for creating a polished and engaging presentation that keeps viewers interested.

The other choices address features that are not directly related to transitions. For instance, the 'Animations' tab manages object movements within a single slide rather than transitions between slides. Inserting a video or selecting slide themes from the 'Design' tab also does not pertain to transition effects between slides. Therefore, using the 'Transitions' tab is the correct method for applying transitions effectively in PowerPoint presentations.