Detailed 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".
Problem:High ocean waves are shown from a coast. A man surfing is seen coming to his feet on his board. the man <sep> (A) adjusts his board and leans back. (B) takes off his board and rides a wave. (C) walks out on board as his board's wake spin around. (D) rides a large oncoming wave.
Solution:
D