Based on current market values, the FIN340 Company has calculated its capital structure weightings to be comprised of 38.0% common stock, 4.0% preferred stock, and 58.0% debt; The pre-tax cost for each is common stock 14.0%, preferred stock 7.5%, and debt 5.0% and the company has a tax rate of 21.0%; What is the FIN340 Company's weighted average cost of capital (WACC)?

8.80%

7.91%

8.52%

6.73%

8.83%

9.13%

10.31%