Please choose the correct ending to complete the given sentence: Waterskiing: People water ski holding a ski ropes that are pulled by a boat. two people

Ending1: ski side to side, then one person free the rope and falls. Ending2: water ski while being towed by a truck. Ending3: jump off a boat into pool. Ending4: ski behind the boat to raise it in the air.

Answer format: ending1/ending2/ending3/ending4