Please choose the correct ending to complete the given sentence: BMX: We see bmx racers on the field and in various locations and riding their bikes. two men

Ending1: speak at the fence while adjusting the settings of the horses and helmets their using. Ending2: fall off their bikes. Ending3: ride horses together and we see the riders on the sideline. Ending4: are talking off screen.

Answer format: ending1/ending2/ending3/ending4