Of the following two sentences, which one is against common sense?
Options:
- Sentence A: "He goes to the library to watch porn."
- Sentence B: "He goes to the library to read books."
 Let's be accurate as possible. So think first.

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
People go to the library to read and check-out books and watch porn in private.
The final answer: Sentence A.