Take It All Away has a cost of equity of $10\mathrm{.}51$ percent, a pretax cost of debt of $5\mathrm{.}25$ percent, and a tax rate of $21$ percent. The company's capital structure consists of $67$ percent debt on a book value basis, but debt is $27$ percent of the company's value on a market value basis. What is the company's WACC?

Multiple Choice

$9\mathrm{.}09\%$

$9\mathrm{.}70\%$

$7\mathrm{.}32\%$

$12\mathrm{.}20\%$

$8\mathrm{.}79\%$