Norman Company issued $500,000 of 6%, 10-year bonds on one of its interest dates for $431,850 to yield an effective annual rate of 8%. Norman uses the effective-interest method of amortization. Interest is paid annually. What is the amount of discount (to the nearest dollar)that should be amortized for the first interest period? a. $14,089 b. $6,815 c. $9,096 d. $4,548