An n-year bond with annual coupons has the following characteristics: (i) The redemption value at maturity is 1,890; (ii) The annual effective yield rate is 6%; (iii) The book value immediately after the third coupon is 1,254.87; and (iv) The book value immediately after the fourth coupon is 1,277.38. Calculate n. A 16 B 17 18 19 E 20