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:A boy plays a set of drums in a studio. the boy <sep> (A) pitches the drums to the floor, then stands to clap. (B) signals to a man behind him. (C) is smiling in the mirror. (D) uses his foot to play a base drum.
Solution:
D