A、The loan and the interest. B、The loan. C、The interest. D、Nothing if they are very poor. A短文开头提到，如果一个学生通过助学贷款完成学业，那么他需要连本带息一同还款

(16)If you take out a student loan to help pay for college, you’re going to have to pay back the money you borrow plus the interest. And with college getting more expensive, more students are turning to loans to help pay for it.(17)One government official has a couple of plans that he thinks will help students manage their student loan debt. He talked about them during a speech in Denver, Colorado yesterday. The first plan deals with how loans get repaid, specifically, how much you pay and for how long.(17)Congress already passed this, which is scheduled to start in September. But the President wants it sooner. The other plan would let students who have multiple loans combine them in a one-repayment program, in which way they might be able to get a break on the loans’ interest rates. Something to keep in mind,(18)we’re only talking about government loans. A lot of students have got loans from private companies and those students wouldn’t benefit from this.(18)Also this covers new loans. If you’ve already borrowed money, nothing will change. And if you’re behind on your loan repayments, you won’t be able to be part of this program. The bad news, college costs thousands of dollars a year. The good news, many students get scholarships or grants to help pay for it. We’re asking about this on our blog today. Tell us about what you will do to cover your college cost. Will you work your way through, get a student loan, or is your family saving up?
16. How much should the students repay if they take out a loan for college?
17. What can we learn about the plans?
18. What kind of students can benefit from these plans?