4. XYZ Corporation expects to pay dividend of $1.00 next year. The corporation forecasts that the dividend will grow 10% in year 2, 20% in year 3, -10% in year 4, 15% in year 5, and after that at 3% constant rate. The risk free is now 3.50%, the rate of return on the market is 7.50%. The corporation's beta is 0.75. a. Calculate required rate of return of ABC Corporation. b. Calculate the stock price of the firm.