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: The credits of the clip are shown. a coach <sep> (A) alone dustwashes a sink. (B) stands with tools strapped to his leg. (C) instructs players in a basketball court. (D) talks as a group talks.
Output:
C