Billick Brothers is estimating its WACC. The company has collected the following information:

Its capital structure consists of $15$ percent debt and $85$ percent common equity.

The company has $10-$year bonds outstanding with a $7\mathrm{.}7$ percent annual coupon that are trading at par.

The company's tax rate is $30$ percent.

The risk$-$free rate is $5\mathrm{.}9$ percent.

The market risk premium is $3\mathrm{.}7$ percent.

The stock's beta is $0\mathrm{.}8.$

What is the company's WACC?

$7\mathrm{.}74\%$

$7\mathrm{.}44\%$

$8\mathrm{.}64\%$

$8\mathrm{.}34\%$

$8\mathrm{.}04\%$