Answer the following question, with explanation first. One of the following sentences is nonsensical. Which one is it?
Options:
- Sentence A: "Cinemas usually play movies after the lights are turned on"
- Sentence B: "Cinemas usually play movies when the lights are off"

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
This statement is against common sense because cinemas only play the movie once the lights have been turned off.
So, the answer is Sentence A.