Please choose the correct ending to complete the given sentence: Playing water polo: A lot of people are swimming in a public pool. they

Ending1: play and splash, then swim in unison to one end. Ending2: gather around a pit and look at the urinals. Ending3: are stepping on a rope and trying to use it. Ending4: are putting on their diving suits.

Answer format: ending1/ending2/ending3/ending4