Q: Of the following two sentences, which one is against common sense?
Options:
- Sentence A: "The desk is a writing instrument."
- Sentence B: "The pen is a writing instrument."

A: Sentence A
Explain how we arrive at this answer:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Explanation: A desk is used as a hard surface to write at.