单项选择题

[听力原文]8-10
M: I want to mail this small package to Beijing. How much is the postage
W: Po you want it insured
M: I don’t think it’s necessary; it’s just a present for a friend.
W: Do you want to send it by air mail or by ordinary mail.
M: By airmail, please.
W: That will be 12.00 dollars.
M: Here you are. And I need to register this letter.
W: Yes, will you please fill out this form, then
M: All right. Oh, by the way, I should have some mail waiting for me here.
W: May I have your name I’ll check to see if it’s here.

How much is the postage()

A.12 dollars.
B.13 dollars.
C.11 dollars.
D.10 dollars.