Please choose the correct ending to complete the given sentence: BMX: There's a man drawing a white starting line on the ground for the race. The bikers get ready to begin their race. they

Ending1: take off onto the dirt path. Ending2: start the race and go through ramps and bumps. Ending3: go over a huge waterfall together. Ending4: leave the track and continue riding the course.

Answer format: ending1/ending2/ending3/ending4