Please choose the correct ending to complete the given sentence: Doing crunches: A man is laying on the floor. Another man holds the ankles of the laying man. the man

Ending1: then begins doing sit ups. Ending2: stands up dancing while spins slowly. Ending3: carves a piece of paper into the man's leg. Ending4: runs his hands through his hair.

Answer format: ending1/ending2/ending3/ending4