What is the most logical next event?

A person is seen falling into the water in front of a jump. Another person is seen riding along on skis past him. the man

Available choices:
[a]. continues to ride as the camera zooms in on the water..
[b]. continues falling in the water when another person appears riding behind him..
[c]. falls out and waves to the camera..
[d]. rides his board more and turns others around..
[a].