Definition: 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: Two military men are talking outside a pool. One of the men dives backward into the pool. the other man <sep> (A) dives into the pool from almost 25 feet. (B) has to help pull him out. (C) swims to the side as the two men talk. (D) swims back in.
Output:
B