Which of the Following Statements Is Most Correct

Which of the following statements is most correct?

A) All else equal, an increase in interest rates will have a greater effect on the prices of long-term bonds than it will on the prices of short-term bonds.
B) All else equal, and increase in interest rate will have a greater effect on higher-coupon bonds than it will have on lower-coupon bonds.
C) An increase in interest rates will have a greater effect on a zero-coupon bond with 10 years maturity than it will have on a 9-year bond with a 10 percent annual coupon.
D) All of the above are correct.
E) Answers a and c are both correct.