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 woman places her feet into the straps of the rowing machine. The woman holds onto the rowing cables and rows. the woman <sep> (A) darts up and down the machine. (B) stands up and opens the door and walks across the beach. (C) stops and demonstrates the motor area of the machine. (D) balances on the bicycle bar.
A:
C