Please choose the correct ending to complete the given sentence: Assembling bicycle: A man is wearing an apron inside a room. He is talking next to a bike on a stand. he

Ending1: shows how to disassemble and assemble the bike. Ending2: snaps a leash onto the bike. Ending3: opens the window and sprays some paint. Ending4: hops up working on the bike.

Answer format: ending1/ending2/ending3/ending4