Please choose the correct ending to complete the given sentence: Playing water polo: A group of children are seen swimming in a pool. the kids

Ending1: hit a ball back and forth in the water. Ending2: put on masks and stand on the deck of a house. Ending3: find a safe spot underwater and swim back and fourth. Ending4: speak to the camera and play with one another.

Answer format: ending1/ending2/ending3/ending4