The market value of Charon Ferries' common stock is $16 million and the market value of its risk-free debt is $4 million. The beta of the company's common stock is 0.5 and the expected risk premium on the market portfolio is 8 percent. There are no taxes. If the Treasury bill rate is 5 percent, what is the company's cost of capital? Between 16 and 18% Less than 10% Between 13 and 15% Between 19 and 21%