Please choose the correct ending to complete the given sentence: Shoveling snow: A person is pushing a snow plow through snow. they

Ending1: are driving very fast, driving across the road. Ending2: drive to the end of a snowy mountain. Ending3: put the snow pile in front of them. Ending4: are clearing a path down a sidewalk.

Answer format: ending1/ending2/ending3/ending4