Grand River Corp. has a debt-equity ratio of 1 and a tax rate of 40 percent. The firm has no preferred stock. The cost of equity is 14 percent and the pretax cost of debt is 7 percent. What is the weighted average cost of capital? A. 8.46 percent B. 8.79 percent C. 9.10 percent D. 9.45 percent E. 9.82 percent