The best advice for college students who need to learn about careers and establish a professional network is to（）

The best advice for college students who need to learn about careers and establish a professional network is to（）
A.enroll in classes in many programs to sample every career path.
B.purchase a good interview suit.
C.write your own blog to attract potential employers.
D.volunteer with a nonprofit organization.
正确答案：volunteer with a nonprofit organization.