Please choose the correct ending to complete the given sentence: Spinning: A man in a red shirt is sitting at an exercise bike. He is moving his legs on the pedals. there

Ending1: are other bikes next to him. Ending2: is a video every now and then of him foot working. Ending3: is some video of the exercise bike being shown. Ending4: 's text and pictures on the screen.

Answer format: ending1/ending2/ending3/ending4