Please choose the correct ending to complete the given sentence: Assembling bicycle: A green bike is leaned against a group of boxes. A man removes the front tire of the bike. he

Ending1: clips the top rim of the tire back off. Ending2: then removes the chain and screws the back wheel into place. Ending3: then shows how to replace the tire with a new one, as well as the seat. Ending4: replaces it with a red one.

Answer format: ending1/ending2/ending3/ending4