Given the following information for Groto Corp. find its WACC. Assume the company's tax rate is 30%. Bonds: 10,000 units of 9% semi-annual coupon bonds outstanding, $1,000 par value, 25 years to maturity, selling for 98% of par. Common shares: 300,000 shares outstanding, selling for $40 per share; the beta is 0.95 . Preferred shares: 55,000 shares of 6% preferred stock outstanding, currently selling for $100 per share. 10% market risk premium and 3% risk-free rate. a. 13.32% b. 12.32% c. 11.22% d. 10.12% e. 9.02%