Suppose the U.S. Treasury offers to sell you a bond for $717.25. No payments will be made until the bond matures 8 years from now, at which time it will be redeemed for $1,000. What interest rate would you earn if you bought this bond at the offer price? a. 3.76% b. 17.43% c. 5.05% d. 4.24% e. 4.86%