Please choose the correct ending to complete the given sentence: Swimming: The swimmer pulls a muscle in the pool and jumps up onto the pool deck and stretches out his leg. A swimmer dives off from a board into the water with a splash. the athlete

Ending1: breaths heavily underwater as the swimmer backs away. Ending2: jumps off the diving board into the pool. Ending3: swims in a lane and pulls himself along with the float line. Ending4: rides a boat with other swimmers to the water.

Answer format: ending1/ending2/ending3/ending4