Please choose the correct ending to complete the given sentence: Roof shingle removal: We see the men on the front part of the roof. We see a man throwing shingles into a trailer on the ground. we

Ending1: see the boys opening shingles with shovels. Ending2: see the people in the screen. Ending3: see the trailer dropped and the men dumping shingles on the ground. Ending4: see the rolls of roofing materials.

Answer format: ending1/ending2/ending3/ending4