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: Before he plays, he begins to talk and make movements across three black keys with his right hand as he continues to talk. he <sep> (A) goes back to playing the wooden guitar and once again switches his left hand to move more on the burgundy guitar. (B) finally begins to play and you can see his hand moving rapidly across the keyboard on the left side of the screen. (C) then moves on again and begins reaching through the other three keys to talk and play the accordion. (D) continues playing the wooden keys with his left hand and begins to pound his punches on the keys of his keyboard with his right hand.
Output:
B