Consider the following information about five bonds. Which bond's price should be the most sensitive to changes in interest rates? \begin{tabular}{|l|l|l|l|} \hline Bond & Coupon rate & 3% & Maturity \\ \hline A & 4% & 10 years \\ \hline B & 3% & 30 years \\ \hline C & 2% & 4% & 10 years \\ \hline D & 4% & 10 years \\ \hline E & \end{tabular} A B C D E