To add text, captions, and other elements to a movie in Movie Maker, you need to use the Titles and Credits feature. This feature allows you to insert text at various points in the movie, such as at the beginning or end, or as overlays on specific scenes. It also provides options for customizing the appearance and timing of the text, such as font style, size, color, and animation effects. Therefore, Titles and Credits is the correct answer for adding text and captions in Movie Maker.