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 man is sitting on a revolving chair with his one leg folded over the other. another man <sep> (A) takes a cloth and begins cleaning his black leather shoes with a cloth to make it shiny. (B) is-pointing at people on the exercise machine behind him. (C) is seen inside of the machine and practices some curling movements. (D) smells the other man's leg waxed, then moves it out from under the table.
Solution:
A