Suppose a Bank Borrows from the Bank of Canada at 3

Suppose a bank borrows from the Bank of Canada at 3 percent annual interest.In order to make a profit, how much interest should the bank charge for loans it makes to the public?  

A)  >3 percent annually 
B)  3 percent annually 
C)  0.01 to 2.99 percent annually 
D)  0 percent annually