Assume that all interest rates in the economy decline from 10 percent to 9 percent. Which of the following bonds will have the LARGEST percentage

Assume that all interest rates in the economy decline from 10 percent to 9 percent. Which of the following bonds will have the LARGEST percentage increase in price?

           a.        20-year, 2 percent coupon

           b.        20-year, 20 percent coupon

           c.         2-year, 2 percent coupon

           d.        2-year, 20 percent coupon