A loan is repaid by making payments of $6000.00 at the end of every six months for twelve years. If interest on the loan is 8% compounded quarterly, and you want to know what was the principal of the loan? Find (the number of interest conversion periods per period interval) Select one: O a. 1/4 sion O b. 1/2 O C. 4 O d. 2 O e. 1/6