Please choose the correct ending to complete the given sentence: Swimming: A group of swimmers stand ready on a platform and bend down to their feet. several men

Ending1: leap onto the platform near the diving board and begin diving into the pool. Ending2: stand behind them when they all jump in at the same time. Ending3: do several flips off a rope into the water. Ending4: take turns running down a long set of diving hills.

Answer format: ending1/ending2/ending3/ending4