Please choose the correct ending to complete the given sentence: Mowing the lawn: A man is seen pushing a piece of machinery over large grass. a 3d animation

Ending1: is in progress of a man pushing a piece of machinery over a big thing. Ending2: is shown how the tool works. Ending3: is shown with the man using the tool gradually. Ending4: is followed that shows him pushing the piece of machinery back and fourth.

Answer format: ending1/ending2/ending3/ending4