Please choose the correct ending to complete the given sentence: Waterskiing: A dog rides on a boat with his owners. A crab is seen crawling on the bottom of a lake. people

Ending1: sail on water skis. Ending2: are sitting around a picnic table enjoying the ocean. Ending3: water ski behind a boat on a calm lake. Ending4: bake cookies on top of a roof.

Answer format: ending1/ending2/ending3/ending4