Please advise on A, B, C & D.

3 Question Help P6-19 (similar to) Bond value and timeChanging required returns Personal Finance Problem Lynn Parsons is considering investing in either of two outstanding bonds. The bonds both have $1,000 par values and 9% coupon interest rates and pay annual interest. Bond A has exactly 8 years to maturity, and bond B has 18 years to maturity a. Calculate the present value of bond A if the required rate of return is: (1) 6%, (2) 9%, and (3) 12%. b. Calculate the present value of bond B if the required rate of return is: (1) 6%, (2) 9%, and (3) 12%. c. From your findings in parts a and b, discuss the relationship between time to maturity and changing required returns. d. If Lynn wanted to minimize interest rate risk, which bond should she purchase? Why