Consider the following bonds.

$\backslash$table$[[$Bond$,$Coupon Rate $($annual payments$),$Maturity $($years$)],[$A$,0\mathrm{.}0\%,15],[$B$,0\mathrm{.}0\%,10],[$C$,3\mathrm{.}5\%,15],[$D$,7\mathrm{.}7\%,10]]$

Bond

is most sensitive$.($Select from the drop$-$down menu.$)$