A $2,000 bond had a coupon rate of 5.30% with interest paid semi-annually. Zachary purchased this bond when there were 8 years left to maturity and when the market interest rate was 7.80% compounded semi-annually. He held the bond for 4 years, then sold it when the market interest rate was 3.50% compounded semi-annually. Calculate the purchase price of the bond. a. $1,084.38 b. $1,706.53 c. $622.15 d. $1,693.49