Please choose the correct ending to complete the given sentence: Doing kickboxing: Two men are inside a gym. One is in boxing gloves and the other is wearing arm guards. they

Ending1: spar with each other, then do some wall wrestling. Ending2: show off the different moves in punching and kicking. Ending3: hit a punching bag that doesn't budge. Ending4: are doing a workout on punching gloves.

Answer format: ending1/ending2/ending3/ending4