Turnbull $Co,$ is considering a project that requires an initial investment of $$270,000.$ The firm will raise the $$270,000$ in capital by issuing $$100,000$ of debt at a before$-$tax cost of $8\mathrm{.}7\%,$$$30,000$ of preferred stock at a cost of $9\mathrm{.}9\%,$ and $$140,000$ of equity at a cost of $13\mathrm{.}2\%.$ The firm faces a tax rate of $25\%.$ What will be the wACc for this project?

$($Note: Round your intermediate calculations to three decimal places.$)$

Options a$)11\mathrm{.}91\%,$ b$)9\mathrm{.}84\%$ c$)8\mathrm{.}81\%$ d$)10\mathrm{.}36\%$