Please choose the correct ending to complete the given sentence: Doing kickboxing: Two children are doing mixed martial arts in front of a television. they

Ending1: went around a hardwood floor, kicking and swinging a machine as they went. Ending2: are doing several hand stands while the younger people watch. Ending3: are punching and kicking each other for sport. Ending4: both use their hands to beat each other into submission.

Answer format: ending1/ending2/ending3/ending4