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".
Q: Two vacuums one taller and one is shorter is show. the vacuum <sep> (A) attachment is operation and a man places the vacuum in the vacuum cleaner. (B) portion shows the robot moving its mouth and tail around while walking around it. (C) removes the vacuum away from the trash. (D) is being use on the carpet, wooden floor, on the corner, under the table and on the side of the trash can and then the carpet.
A:
D