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: The boat is pulling the same tube with several young people on it. A person water skis behind the boat. a jet ski <sep> (A) passes by the boat then we see the passengers. (B) is pulled by a boat. (C) is held on water behind the boat. (D) is being pulled by a boat.
A:
A