Show step by step workings as well please a. The expected return on the market portfolio equals 10%. The current riskfree rate is 5%. What is the required rate of return on a stock with a beta of 1.2? b. Suppose stock Alpha is selling for $20. The stocks beta is 1.5, the risk free rate is 6%, and the expected return on the market portfolio is 12%. If you forecast that the price of stock Alpha will be worth $25 next year (assume no dividends), should you buy the stock or not? c. You believe that a particular stock has an expected return of 12%. The stocks beta is 0.65, the riskfree rate is 5%, and the expected market risk premium is 8%. Based on this, is the stock is overvalued or undervalued? Provide a brief explanation for your answer.