Final answer:
The question is nonsensical since mice cannot run down clocks. The provided passage mentions the time as ten o'clock, but it does not specify when the mouse ran down the clock.
Step-by-step explanation:
The question is a nonsensical one since mice cannot run down clocks. It is important to note that the passage provided mentions the time as ten o'clock. However, this is a quote from a literary work and does not specifically mention the time when the mouse ran down the clock. Therefore, the answer to this question is D) It's a nonsensical question.