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: The video takes place in the pool of a backyard. a tight rope <sep> (A) is strung across the length of the pool and a woman is attempting to walk across, she falls several times. (B) is attached to several waterproof ropes inside the fence. (C) is tied between two trees. (D) moves quickly about the pool.
A:
A