Please choose the correct ending to complete the given sentence: Assembling bicycle: The man sits on the bike. The man adjusts the seat and sits on the bike again. The man adjusts the handle bars. the man

Ending1: places a helmet on the bike and completes the final turn. Ending2: touches the wheel of the bike. Ending3: sits on the bike again. Ending4: sits on the bike and works on the bike.

Answer format: ending1/ending2/ending3/ending4