Nob-Orrow Inc. is considering an investment in a project that is similar in risk to its existing projects. The firm makes no use of debt and is entirely financed by common stock with a beta of 1.4. The expected return on the market portfolio is 12 percent and the risk-free rate is 3 percent. The required rate of return on this project is: a. 16.8% b. 9% c. 15.6% d. 12%