An animation begins when Claudia clicks the red rectangle on slide 14. The red rectangle is a (n):

cue

hyperlink

trigger

hotspot

The correct answer here is trigger.

When we have animations in our presentations we need to start them and to do that we use triggers. In case of Claudia's presentations that trigger is a red rectangle. In essence, trigger is a button in a slide that will start, that is, trigger an animation that will start to play. Starting an animation is called an event, and an event can be among other things a mouse click.