OK. You'll be given the following question. Please do chain-of-thought reasoning.
Which of these sentences doesn't make sense?
Options:
- Sentence A: "Trains usually close ticket-checking lanes minutes before departure."
- Sentence B: "Trains usually close ticket-checking lanes minutes after departure."

user
Lanes do not need to close once a train has already departed.
Thus, the answer is Sentence B.
assistant