PLEASE SHOW ALL WORK

3. You are given the following information about a portfolio of three alternative securities: Rate of Return in \% if State Occurs Assume that you have invested 40 percent in both stocks A and B, and 20 percent in stock C. a. Calculate the portfolio rate of returns in each state of economy. b. Calculate the portfolio expected return and standard deviation. Show all your work. c. Using the CAPM and assuming a risk free of return of 7%, a market return of 12%, and portfolio beta of 1.87, calculate the portfolio required rate of return. Using this result and the expected return found in part b, state whether this portfolio is undervalued or overvalued. What should be your trading strategy? Explain