Please choose the correct ending to complete the given sentence: Tai chi: A man is doing tai chi moves on a beach alone in front of the sun. a group of people all dressed in white

Ending1: joins the man on the beach and does the martial arts moves. Ending2: ride bikes down a hill. Ending3: gym suit enter and sit on front several gray chairs. Ending4: laugh at him.

Answer format: ending1/ending2/ending3/ending4