Question $21($Bonus$)(1$ point$)$

BONUS: What is its adjusted WACC after the bond sale if the corporate tax rate is $40\%?($Hint: the firm is no longer an all$-$equity firm because debt was used to purchase equity$).$

$9\mathrm{.}5256\%$

$10\mathrm{.}9418\%$

$9\mathrm{.}9765\%$

$8\mathrm{.}9523\%$

$10\mathrm{.}0167\%$