Teacher: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".
Teacher: Now, understand the problem? Solve this instance: People walk along a sidewalk. The man in the green shirt is talking into a microphone. a man in a purple shirt <sep> (A) is playing the bagpipes. (B) then talks into the microphone. (C) wearing a black hat is standing outside holding a fence post. (D) kayaks down a waterfall.
Student:
B