Please choose the correct ending to complete the given sentence: BMX: A scoreboard and large video screen are shown. Bikers launch down a very tall ramp onto a dirt bike track. the bikers

Ending1: are waiting their turn as they high five each other. Ending2: roll through a series of exits and stops. Ending3: race around the bumpy track. Ending4: crash to the ground continuously, each one of them injured, on the track.

Answer format: ending1/ending2/ending3/ending4