Please choose the correct ending to complete the given sentence: Volleyball: A group of team mates are inside a gym. They are playing a game of volleyball. they

Ending1: hit the ball back and forth over the net. Ending2: move to and fro, smiling to the camera. Ending3: hit the ball over and over again. Ending4: go back and forth, trying to keep the ball from hitting each other.

Answer format: ending1/ending2/ending3/ending4