Upton Umbrellas has a cost of equity of $10\mathrm{.}9$ percent, the YTM on the company's bonds is $5\mathrm{.}5$ percent, and the tax rate is $25$ percent. The company's bonds sell for $92\mathrm{.}9$ percent of par. The debt has a book value of $$387,000$ and total assets have a book value of $$945,000.$ If the market$-$to$-$book ratio is $2\mathrm{.}53$ times, what is the company's WACC?

$8\mathrm{.}97\%$

$8\mathrm{.}25\%$

$5\mathrm{.}50\%$

$9\mathrm{.}52\%$

$8\mathrm{.}01\%$