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: A black poodle is walking down a concrete sidewalk on a red leash. as the dog <sep> (A) walks past a parked car and looks around, two men are seen that resemble fencers. (B) continues walking down the sidewalk, he stops at every set of bricks and begin to smell around them. (C) comes closer, the heel of the leash is pressed against the walkway. (D) walks, the dog zooms in and out to check on the walking dog.
A:
B