15. Sea Oats Company has 10 million shares of common stock outstanding with a price of $25 per share. There are 2 million shares of preferred stock outstanding with a price of $50 per share. The company also has debt outstanding with a market value of $150 million. The required return on common stock is 16.8%. The required return on preferred stock is 12.5% and the before-tax required return on debt is 11%. If the tax rate is 20%, what is Sea Oat's WACC? a. 10.28% b. 10.92% c. 12.10% d. 12.91% e. 13.54%