Instructions: In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".
Input: A person water ski in the water holding a rope attached to a boat in the river. The person pass on front a boat in the river while waterskiing. then <sep> (A) , person use it to wakeboard for a distance of waist high. (B) , the person water skis under the water to wake raft before coming to safety to wake raft in the river. (C) , the person gives a thumb up while performing waterskii, after the person continues waterskiing. (D) , the person water ski in the stream doing climbs of a boat, and swim in the river while showing videos of) stunts.
Output:
C