【正确答案】 B

【答案解析】[听力原文]
   M: Hi, Kate. You look upset. What's up?
   W: Well, I'm trying to figure out where all my money has gone.
   M: You've lost your money? Was it stolen'?
   W: No, no. I seem to have spent all my allowance for this month. Now I don't even have money to go out and eat.
   M: Hey, I thought you had a good part-time job at the supermarket.
   W: I do. I work about 20 hours a week, and the pay is not bad, $10 per hour.
   M: Really? So that's what, $ 200 a week.., times four weeks... so that's $ 800 a month. That's not a bad income for a student!
   W: I know. And my parents send me $ 250 a month, too. But...
   M: Wow, that's more than $1 000 a month. And you can't live on that?
   W: No, I only manage to save about $10 a month.
   M: It sounds like you have a budget problem. Simple, either work more or spend less.
   W: I'm definitely not going to work more. I'll have no time to study.
   M: So you'd better start spending less. Why don't you make a monthly budget?
   W: A budget? Hmm, maybe... Hey, you major in economics, right?
   M: Uh, yeah. Why?
   W: Well, you're the best person to help me make a budget!
   M: Um, that really needs a lot of time. We need to sit down and talk.
   Why does Kate look upset?