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".
Q: A man is seen speaking to the camera and pans over to a roof that is breaking apart. he <sep> (A) climbs metal beams all around a roof while moving up and down while the camera films off his movements. (B) points all over the roof and shows a man working on the roof while panning around again. (C) stops talking and wipes the snow off of the roof. (D) is seen spreading concrete around the roof and continuing to kick around pieces.
A:
B