听力原文：W: Airports are sad places.
M: Sometimes, I guess. But, we'll write to each other. You'll come down at Christmas.
W: If we can find the money.
M: Don't worry, Marta. Everything will be taken care of. They say that fares are going to be reduced in the next six months. And when I graduate, well...
W: That's two years from now. Two years is a long time.
M: The time will pass quickly. You'll see. I might even be able to go back to New York next summer.
W: Oh, John, you'll forget all about me. Your mother will find you a nice girl, you'll get married, and live happily ever after.
M: No, I won't. I swear I won't. Believe me please.
W: Whatever you say, all I know is that you are going to be taken away from me.
M: That's ridiculous! I'll write every day, whether you answer me or not.
W: Don't be silly. You'll have other things to do. (She begins to cry. )
M: Don't cry, Marta, please.
Who do you think are the two speakers in the conversation？

A. Betty and Tom.
B. Alice and Smith.
C. Marta and John.
D. Maria and Joseph.