Please choose the correct ending to complete the given sentence: Doing crunches: A girl is laying on a black mat next to a swimming pool. She starts doing sit ups on the ground. the person

Ending1: then shows her how to do sit ups. Ending2: then begins standing on top of her body. Ending3: filming walks around them. Ending4: is seen pushing the girls back and fourth.

Answer format: ending1/ending2/ending3/ending4