[单项选择]In general, the amount that a student spends for housing should be held to one-fifth of the total （　） for living expense.
A. acceptable
B. advisable
C. available
D. applicable

The foreign student adviser (FSA) and members of his or her staff provide a number of services important to all foreign students on campus. Duties of FSAs vary from campus to cam pus, but most are responsible for providing assistance on immigration matters, coordinating all campus and community services available to foreign students and serving as a liaison between foreign students and personnel on campus and in the community.
Foreign student advisers are willing to discuss any matters with their foreign students-- even extremely personal ones which in other societies might be discussed only in the family. All discussions with FSAs are kept in strict confidence, and if the advisers are unable to provide the assistance requested, they are prepared to refer you to the correct office or person, giving you some background about the person and advising you about how best to present your problem. In order for FSAs to provide the most effective assistance, it is important tha
A. foreign students
B. the Immigration and Naturalization Service
C. the local community
D. U.S. college and university life