A、The man passed the exam. B、The man found the exam too difficult. C、The man finished the exam in half an hour. D、The man forgot

W: It’s said that you pay higher rent for your new apartment.
M: I have no complaint about the rent. It’s quite reasonably charged if the utilities are included.
Q: What did the man say about the rent of his apartment?

W: How did you do in the final exam of Accounting?
M: I thought it should have been easy for me, but when half an hour passed, there was nothing on the paper but my name and student number on the top of the first page.
Q: What can we learn from the conversation?