please answer all parts of the question

2. Bond J has a coupon rate of 3 percent. Bond K has a coupon rate of 9 percent. Both bonds have 19 years to maturity, make semiannual payments, and have a YTM of 6 percent. a. If interest rates suddenly rise by 2 percent, what is the percentage price change of these bonds? b. What if rates suddenly fall by 2 percent instead? c. What does this problem tell you about the interest rate risk of lower-coupon bonds