Ford Motor Company is discussing new ways to recapitalize the firm and raise additional capital. Its current capital structure has a 10% weight in equity, 20% in preferred stock, and 70% in debt. The cost of equity capital is 17%, the cost of preferred stock is 11%, and the pretax cost of debt is 9%. What is the weighted average cost of capital for Ford if its marginal tax rate is 30%? O A. 7.89% OB. 8.31% OC. 9.14% OD 8.73%