Please choose the correct ending to complete the given sentence: Scuba diving: A clock is shown under neath the waters. a swimmer

Ending1: goes along the bottom of the ocean while holding it. Ending2: takes off his sea boat diving into the water and plays with the buoy. Ending3: is seen diving underneath the ocean floor. Ending4: is seen pulling a rope to get himself under water.

Answer format: ending1/ending2/ending3/ending4