What happens next?

All the riders go over a jump and land smoothly. All the riders then go around a sharp turn. two riders at the back of the pack

OPTIONS:
a). wiped out while turning.;
b). are holding onto the reins in their hands.;
c). stop talking and walk over to the jumpers.;
d). are running in circles as they all do a spectacular dismount and walk toward each other.;
a).