Please choose the correct ending to complete the given sentence: Swimming: Female swimmer jump off into the water at a swim meet. They quickly race down the swim lanes. the swimmers

Ending1: repeatedly go back and forth down the swim lanes using various swimming techniques. Ending2: come back and soak up the sun and the gas so they can sweat like scuba divers. Ending3: jump through numerous obstacles a ocean can created. Ending4: arrive at the round end then jump in.

Answer format: ending1/ending2/ending3/ending4