Please choose the correct ending to complete the given sentence: BMX: We see kids on dirt bikes on a dirt field with adults standing over them. the kids

Ending1: jump off the bikes and we see them on track. Ending2: run around the field and are chased by an older man. Ending3: take off and start down the dirk track. Ending4: sit down on the ground and kneel up to start the race.

Answer format: ending1/ending2/ending3/ending4