Suppose you are estimating the WACC for a company, which has the following data from its balance sheet: total debt $=$$$260$ million; total equity $=$$$170$ million. It has $20$ million shares outstanding, and its stock is trading at $$30$ per share. Your analysis shows that the company's current borrowing rate is $7\%,$ and that the cost of equity is $15\%.$ If the company marginal tax rate is $30\%,$ what is its WACC?

$11\mathrm{.}9\%$

$12\mathrm{.}3\%$

$12\mathrm{.}9\%$

$13\mathrm{.}4\%$

$14\%$

$14\mathrm{.}4\%$