Please choose the correct ending to complete the given sentence: Fixing bicycle: The man points at a bike. The man takes off the handlebars on a bike and adjusts them. the man

Ending1: demonstrates how to start a car. Ending2: adjusts the brake pedal on the bike. Ending3: puts the handlebars back on. Ending4: secures the contraption.

Answer format: ending1/ending2/ending3/ending4