Zion Inc. has a pre-tax cost of debt of 7.6 percent, a cost of equity of 12 percent, and a cost of preferred stock of 8.5 percent. The firm has 220,000 shares of common stock outstanding at a market price of $27 a share. There are 25,000 shares of preferred stock outstanding at a market price of $41 a share. The bond issue has a face value of $550,000 and a market quote of 101.2. The company's tax rate is 30 percent. What is the firm's weighted average cost of capital? Select the choice that is closest to your answer.