You will be given a definition of a task first, then some input of the task.
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".

A female gymnast spins and flips on a high beam. a man <sep> (A) watches from a parallel beam. (B) who is likely her coach is spotting and training her. (C) and woman stand on the edge of a beam. (D) vaults up after her.
Output:
B