47) The CAPM is a popular model to estimate a firm's average cost of capitals. Assume the cost of equity and pre-tax cost of debt for firm A is 14.8%, and 6.7%, respectively. This firm has to pay 34% tax. The debt-equity ratio of the firm is .46. Find the firm's weighted average cost of capital? A) 10.18 percent B) 11.72 percent C) 11.53 percent D) 13.49 percent