Please choose the correct ending to complete the given sentence: BMX: Once he gets to the top of the hill, he begins racing his bike throughout a field with several mounds of dirt. more tracks

Ending1: appear and the man begins racing against other individuals on the track. Ending2: are shown followed by a biker jumping over a fence while others help. Ending3: lead into fields and he does a run on his bike at several points, riding the dirt bike into the middle. Ending4: come out from another cut in the dirt for him to be now already over the last hill.

Answer format: ending1/ending2/ending3/ending4