$2.$ What is the static spread for a three$-$year $9\%$ coupon corporate bond selling at $105\mathrm{.}58,$ given the following theoretical Treasury spot rate values equal to $50,100,$ or $120$ basis points?

$$Period

$$Spot Rate $(\%)$

$1$

$4\mathrm{.}0$

$2$

$4\mathrm{.}2$

$3$

$4\mathrm{.}9$

$4$

$5\mathrm{.}4$

$5$

$5\mathrm{.}7$

$6$

$6\mathrm{.}0$