A firm has $50 Million in Common Stock, $10M in preferred, and $15M of debt. The Cost of Equity is 9%, the cost of the preferred stock is 7%, and the pretax cost of debt is 4%. If the firms tax rate is 35%, what is the firms WACC?

A. 6.33%

B. 7.53%

C. 6.67%

D. 7.73%

E. 5.16%

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