Which answer best describes an unsubsidized federal loan?

Which answer best describes an unsubsidized federal loan?
A) You are only responsible for the cost of the loan.
B) You are responsible for paying all the interest that accumulates on your loan.
C) The federal government will only cover the interest accumulated on the loan if you graduate and earn a degree.
D) The federal government will cover the interest accumulated on the loan while you’re in school.