I need help please solving this question, please. Thank you.

11. Which of the following bonds would have the largest change in price (in percentage terms) for a given change in interest rates (that is, in yield to maturity) - for example, if the yield to maturity on a bond decreases from 8% to 6%, all else constant, which of the following bond prices will change the most (in percentage terms)? a. A $1000 par value bond with a 10% coupon rate (annual payments) that matures in 2 years. b. A $1000 par value bond with a 10% coupon rate (semi-annual payments) that matures in 25 years. c. A $1000 par value bond with a 2% coupon rate (annual payments) that matures in 4 years. d. A $1000 par value bond with a 2% coupon rate (semi-annual payments) that matures in 30 years. e. The bond that changes the least (in price percentage terms) cannot be determined from the information given