Please choose the correct ending to complete the given sentence: Doing karate: A boy in karate class bows before a performance. The boy performs a karate routine with hand scythes. the boy

Ending1: ends his routine and bows. Ending2: waves and walks away. Ending3: picks up a rod and slowly advances towards his opponent. Ending4: walks away.

Answer format: ending1/ending2/ending3/ending4