Which of the following is true? I. The dividend discount model seeks to find the present value of expected dividends as a basis of stock value. II. The estimate of stock value derived from application of the dividend discount model is in large part dependent on the expected growth rate in dividends per share. III. The corporate valuation model is an alternative stock valuation model that first calculates free cash flows then finds the present value of these cash flows. IV. The corporate valuation model is an alternative stock valuation model that first calculates free cash flows then finds the present value of these cash flows. V. The rate of return earned on equities is a function of the sum of one's dividend yield and capital gains yield.