In which type of ad do you select three to ten photos that play like a short animated video?

The correct choice is the slideshow ad because it is specifically designed to allow advertisers to combine multiple images into a single ad that plays like a video. By selecting three to ten photos, the slideshow ad can create a dynamic presentation that simulates a video experience, enabling storytelling through visuals with simple transitions and effects. This format is particularly effective in capturing attention and communicating a message quickly and engagingly.

In contrast, the carousel ad enables users to swipe through a series of images or videos but does not automatically play them like a slideshow. Video ads consist of actual video content, which differs from the slideshow format that utilizes photos. The collection ad features a primary video or image with associated products below it, but it does not compile multiple images into an animated format. Each of these other options serves distinct purposes within advertising on Facebook, but only the slideshow ad aligns with the description provided.