Please choose the correct ending to complete the given sentence: Kneeling: A man is seen kneeling in a gym. He leans forward several times. he

Ending1: continuously sits in his shorts and continues doing sit ups. Ending2: then jumps over a beam. Ending3: seems to be practicing some aerobic moves. Ending4: is performing slow stretching moves.

Answer format: ending1/ending2/ending3/ending4