4. (13 points) X Corp currently pays out 100% of its earnings to shareholders as dividends. It expects to yield $4 earnings per share forever starting next year (exactly one year from now). The market risk premium is 8%, and the risk-free rate is 4%. Corp's stock beta is 1. (1) (3 points) What is the required rate of return for X Corp stocks? (2) (3 points) Calculate its stock's current intrinsic value if the firm keeps its current payout policy forever. (3) (5 points) If X Corp just discovers a growth opportunity, with ROE=10%. The management decides to pay out only 40% of its earnings starting from the next year's dividend and forever after, so that it can reinvest the rest in the growth opI inity. Suppose the growth opportunity lasts forever, what is the present value of its gro opportunity (PVGO)? (4) (2 points) What is the ROE of the growth opportunity such that PVGO of X Corp is exactly zero, while everything else remain the same as in Question (3)