Please choose the correct ending to complete the given sentence: Doing kickboxing: A couple of men are fighting inside a gym. they

Ending1: hit each other with ball and kicks. Ending2: use paintball guns in the air, trying to hit and knock each other down. Ending3: are using batons, throwing and kicking. Ending4: are using boxing gloves and equipment.

Answer format: ending1/ending2/ending3/ending4