Please choose the correct ending to complete the given sentence: Assembling bicycle: Two men are in a garage, assembling parts on a tripod. They are creating a bicycle as they work. they

Ending1: blow up, appearing as images of the bicycle. Ending2: equip the bicycle with a blue painted handle. Ending3: put on the tires, completing the bike and showing it off for the camera. Ending4: are working on a split tire in the garage, replacing electrical wires.

Answer format: ending1/ending2/ending3/ending4