Please choose the correct ending to complete the given sentence: Doing kickboxing: Kids are in a gym working out on the floor. A boy is kicking a mat being held by a man. a boy

Ending1: is entering the gym holding a gun. Ending2: is moving back and forth and then the man picks him up and throws him on a table. Ending3: is throwing a ball into the air. Ending4: is wearing boxing gloves practicing boxing.

Answer format: ending1/ending2/ending3/ending4