OPT:
a). are shaker on a wave while another man stands on his board watching.;
b). continue surfing with one another while letting go of the rope.;
c). fall from the board and come back onboard to wave.;
d). surf close to each other and are knocked down by a wave.;Choose from options above and answer: What most naturally follows?

A group of surfers are on their boards surfing waves. One of the surfers is swallowed by one of the waves. two surfers
Answer:
d).