Please choose the correct ending to complete the given sentence: Tennis serve with ball bouncing: A girl in red outfit serves the ball to her friend on an outdoor tennis match. the friend

Ending1: returns the ball and the two play a round of tennis. Ending2: turns around and serves the ball. Ending3: pulls back on the cord shuttling the ball to her friend. Ending4: serves the ball, but misses it.

Answer format: ending1/ending2/ending3/ending4