4. An investor buys a 6% coupon bond with 25 years to maturity and yield to maturity of 5.8%. Four years later the yield to maturity is 6.2% and the investor sells the bond. During the 4-year holding period, coupons are reinvested at 5.8% annual rate (coupons are received and reinvested semi-annually) during the 4-year holding period. The bond pays semi-annual coupons. a. What is the purchase price of the bond? b. At what price is the bond sold after 4 years? c. How much will be accumulated from the coupons received and reinvested? d. Putting the answers from b and c above together, how much does the investor have at the end of 4 years?