One of the following sentences is nonsensical. Which one is it?
Options:
- Sentence A: "a customer can ask a cleaner question about the price of products in a mall"
- Sentence B: "a customer can ask a salesman questions about the price of products in a mall"
 Let's reason step by step:

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
It isn't a cleaner's job to know the price of products in the mall. Final answer: Sentence A.