California Clinics, an investor-owned chain of ambulatory care clinics, just paid a dividend of $2 per share. The firm's dividend is expected to grow at a constant rate of 5 percent per year, and investors require a 15 percent rate of return on the stock. a. What is the stock's value? b. Suppose the riskiness of the stock decreases, which causes the required rate of return to fall to 13 percent. Under these conditions, what is the stock's value? c. Return to the original 15 percent required rate of return. Assume that the dividend growth rate estimate is increased to a constant 7 percent per year. What is the stock's value? (5 points each; 15 points total)