Please choose the correct ending to complete the given sentence: Fixing bicycle: The man touches the handle bars of a bike then grabs a wire off a table. The man strings the wire through the bikes brake system. the man

Ending1: gets on the bike and starts pedaling with the bike bouncing up and down. Ending2: walks a small car around the installation. Ending3: adds a black plastic sheath over the wire and attaches it to the wheel brace. Ending4: starts working out on a bike.

Answer format: ending1/ending2/ending3/ending4