Please choose the correct ending to complete the given sentence: Tennis serve with ball bouncing: A man in a baseball cap, shorts and a blue short sleeved shirt serves three tennis balls across a tennis net on a tennis court by himself. a man on a tennis court by himself

Ending1: serves a tennis ball with a tennis racket across a net. Ending2: serves a tennis ball from far away while another man clothing in a suit and tie walks in front of him. Ending3: hits the wooden ball with his tennis racket. Ending4: attempts to serve several balls without a racket in a game where a net on the other side can block any hits.

Answer format: ending1/ending2/ending3/ending4