A、Because it comes by mail. B、Because it arrives a few days earlier. C、Because it is much cheaper. D、Because it is inconvenient

M: Mrs. Smith, thanks very much for coming to the station. Could you describe the man who robbed the bank this morning?
W: Well, I can only remember that the man was tall and he had dark hair.
Q: What’s the probable relationship between the two speakers?

M: This journal is quite interesting. How much does it cost?
W: I don’t know exactly because I have subscribed to it. Though each issue comes a few days later by mail, it costs about 25 percent less overall.
Q: Why did the woman subscribe to the journal?