Please choose the correct ending to complete the given sentence: Playing squash: A man wearing a yellow shirt and a man wearing a black shirt play racket ball. The man in black serves the ball. The man in yellow serves the ball. the man in yellow

Ending1: rotates his body and serves the ball. Ending2: serves the ball to another player. Ending3: serves the ball again. Ending4: walks to the next table and puts down his racket.

Answer format: ending1/ending2/ending3/ending4