What happens next in this paragraph?

Several bicycle racers dressed in motocross suits and wearing helmets are lined up at the start line, waiting to race. The race begins, and all bikers race down a hill, toward a jump. the bikers
(A). tip their bikes with " g-d ".; (B). climb, dismount, and advance, galloping and jumping.; (C). jump off a hill, but one of the bikers, dressed in red and black, tumbles to the ground.; (D). , wearing jump gear and helmets, race past each other, and again into a free fall, landing right on their heads.;
(C).