Please choose the correct ending to complete the given sentence: Assembling bicycle: A bicycle flipped upside down is up against the wall as an orange change is shown. a person

Ending1: is driving a pink rig into a wall. Ending2: then comes and removes the chain from the bike and places it on the ground. Ending3: is holding an orange use tool while facing a machine. Ending4: is wind surfing on a race bike.

Answer format: ending1/ending2/ending3/ending4