The market value of Fords' equity, preferred stock, and debt are $7 billion, $2 billion, and $10 billion, respectively. Ford has a beta of 1.2, the market risk premium is 6%, and the risk-free rate of interest is 4%. Ford's preferred stock pays a dividend of $4 each year and trades at a price of $27 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. 8.68%

B. 9.09%

C. 8.26%

D. 9.92%