You are assigned to calculate the Weighted$-$Average$-$Cost$-$of$-$Capital $($WACC$)$ for your firm. There are $20,750,000$ shares of stock outstanding, which are currently trading for $$89\mathrm{.}10$ per share. The firm has $685,000$ coupon bonds outstanding that are selling for $$1,050.$ You estimate that the shareholders require a return of $8\mathrm{.}50\%,$ and the bondholders demand $5\mathrm{.}25\%.$ The firm$$s marginal tax rate is the statutory $21\%.$ What is the WACC of the enterprise?

Group of answer choices

$7\mathrm{.}64\%$

$6\mathrm{.}00\%$

$7\mathrm{.}28\%$

$7\mathrm{.}14\%$

$7\mathrm{.}59\%$