A Hard Days Night $($HDN$)$ has a capital structure that is based on $50$ percent debt, $5$ percent preferred stock, and $45$ percent common stock. The cost of debt is $6\mathrm{.}2$ percent, the cost of preferred is $8\mathrm{.}4$ percent, and the cost of common stock is $13\mathrm{.}7$ percent. The tax rate is $21$ percent. What is the WACC for HDN$?$

Multiple Choice

$9\mathrm{.}034\%$

$9\mathrm{.}299\%$

$13\mathrm{.}7\%$

$8\mathrm{.}614\%$