Please choose the correct ending to complete the given sentence: Mowing the lawn: A child pushes a toy lawn mower behind his father mowing the lawn. the child and father

Ending1: move side by side as the lawn mower and its toy moves back and fourth behind the man mowing. Ending2: take turns pushing the toy lawn mower. Ending3: turn and mow another section of the lawn. Ending4: walk to and fro, moving the toy lawn mower.

Answer format: ending1/ending2/ending3/ending4