Please choose the correct ending to complete the given sentence: BMX: A group of young boys are on bicycles behind a sand preparing to take off and race down the course. the latch

Ending1: is let down and they all take off into the dirt and start to race in the dirt. Ending2: is released on the front and two of the boys begin racing down the course before stopping at a've-t's for an unlicensed home run then they begin racing near the surfboard, every goal successfully reached they begin racing closer to home. Ending3: on the bikes and hoist them up before starting a race. Ending4: of the cyclist lob the opposing ball and this time they make it in the hole and roll across the sand.

Answer format: ending1/ending2/ending3/ending4