The market value of Fords' equity, preferred stock, and debt are $8 billion, $1 billion, and $11 billion, respectively. Ford has a beta of 1.5, the market risk premium is 6%, and the risk-free rate of interest is 5%. Ford's preferred stock pays a dividend of $3 each year and trades at a price of $29 per share. Ford's debt trades with a yield to maturity of 7%. What is Ford's weighted average cost of capital if its tax rate is 30%? A. 9.25% B. 8.81% C. 10.57% D. 9.69%