Corcovado Co. issues only common stock and bonds. The firm has a debt-equity ratio of 1/4. The cost of equity is 15.0 percent and the pre-tax cost of debt is 6.0 percent. The tax rate is 21 percent. What is its weighted average cost of capital (WACC)? 10.18 percent 12.95 percent 11.15 percent 13.86 percent