Which of the following bonds will have the highest percentage price decline if the interest rates increase by 3 percent from its current level of 6.5 %?

a. A 30-year zero coupon bond with a par value of $6500

b. A 28-year zero coupon bond with par value of $1000 and a coupon rate of 6 percent?

c. A 10-year coupon bond with par value of $1000 and 4 % coupon rate?

Put the lowest percentage change as a number to answer this question. If the change is negative, use the negative sign