-Excuse me, could you show me the way to the nearest post office

-Excuse me, could you show me the way to the nearest post office?-_____.Oh yes! Two bloc ks away from here at the Green Avenue. You can t miss it.

A.I beg your pardon?

B.What do you mean?

C.You re welcome.

D.Um. let me think.

正确答案是D