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 18%, the cost of preferred stock is 10%, and the protax cost of debt is 8%. What is the weighted average cost of capital for Ford if its marginal tax rate is 40%? OA. 7.88% OB. 7.16% OC. 6.8% OD. 7.52%