Alp Corporations common stock has a beta of 1.5. If the risk-free rate is 4 percent and the expected return on the market is 12 percent, tax rate is 20%, what is the companys cost of equity capital? If Alpha needs to pay 8% rate of interest on its debt, and market value of its equity is 30 million and market value of its debt is 10 million. What is the companys WACC? A. 15.9% B. 7.4%