Given the task definition and input, reply with output. 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".

A large museum is shown with several vases and pictures hanging from the wall. as the 360 angle of the room <sep> (A) , one of the pieces of furniture is moved. (B) stops, a man and a woman appear standing together in the room. (C) increasing, a woman is walking casually with a pet cat. (D) is shown, the painting begins to change forms and different people are interacting with it.
B