Please choose the correct ending to complete the given sentence: BMX: The boy then comes back and begins moving the pedals on the bicycle and then stands up on the bike. another angle

Ending1: is shown and the ramps are let down and the boy begins riding down the pavement. Ending2: is shown, brief, where the boy is standing on the bike between the handlebars and the hanging wire holding the weight bar. Ending3: with the boy working is showed and the boy on the bicycle reveals his helmet as another boy moves it. Ending4: is shown and the boy looks back in a mirror.

Answer format: ending1/ending2/ending3/ending4