Please choose the correct ending to complete the given sentence: BMX: A boy is sitting on a ramp with the flaps up on his dirt bike waiting to go on the course. the boy

Ending1: runs to the ramp and jumps down the track. Ending2: then comes back and begins moving the pedals on the bicycle and then stands up on the bike. Ending3: goes on going down the course with other kids and a man on the side watching him. Ending4: walks away from the ramp and runs into another fellow rider riding a dirt bike.

Answer format: ending1/ending2/ending3/ending4