Please choose the correct ending to complete the given sentence: Waterskiing: A man is holding onto a bar as he is standing on a water ski. he

Ending1: is standing up on the bar talking and does hand stands on it. Ending2: is being pulled through the water by a motor boat. Ending3: starts to float on the water and tires himself out. Ending4: does several tricks while was standing on the water skis.

Answer format: ending1/ending2/ending3/ending4