You were hired as a consultant to Dundee Company, whose target capital structure is $35\%$ debt, $10\%$ preferred, and $55\%$ common equity. The effective post$-$tax interest rate on new debt is $4\mathrm{.}88\%,$ the yield on the preferred is $9\mathrm{.}67\%,$ the cost of retained earnings is $14\mathrm{.}25\%,$ and the tax rate is $35\%.$ The firm will not be issuing any new stock. What is Dundee$$s WACC?

$6\mathrm{.}83\%$

$7\mathrm{.}02\%$

$9\mathrm{.}60\%$

$10\mathrm{.}51\%$

$9\mathrm{.}91\%$