Please choose the correct ending to complete the given sentence: Fixing the roof: A man is smoothing a substance on a roof with a trowel. He moves quickly to smooth out dents. the man

Ending1: moves to the bottom and smooths back up the top. Ending2: stains the roof with the substance. Ending3: blows on a container of lighter fluid. Ending4: uses a tool to hold the roof up.

Answer format: ending1/ending2/ending3/ending4