A $1,000 par value bond with 4% annual coupons is purchased at a discount ten years prior to the maturity date. The proceeds of the coupons are invested in a savings account with a 5% effective annual rate of interest. The effective yield on the ten year investment- including the bond and the savings account-is 6%. What is the book value of the bond one year after purchase? Less than $848 B At least $848 but less than $852 At least $852 but less than $856 D At least $856 but less than $860 E $860 or more