Please choose the correct ending to complete the given sentence: Swimming: An intro leads into several older clips of olympic performers performing incredible acts. one group of people

Ending1: goes back a number of times to images of the synchronized acts. Ending2: on a stage performs tricks as well as stand against a backdrop and perform tricks with the audience. Ending3: are seen swimming while hundreds of people cheer and many people look to the camera and smile. Ending4: performs a hand stand while the camera pans around to others throughout the stadium.

Answer format: ending1/ending2/ending3/ending4