Please choose the correct ending to complete the given sentence: BMX: The people are behind the small fence with their bikes. Then the fence is put down the bikers started racing with each other. the bikers

Ending1: jump over the rails that are space high over the fenced area. Ending2: are cycling through the ramps as audiences are watching. Ending3: are running around the dirt track. Ending4: finish the race on a red race bike.

Answer format: ending1/ending2/ending3/ending4