please help me on this question

Three investors are examining a company called TopCruises Inc. They all require 3&3 return per year from this company. Investor A believes the firm will pay a dividend of $3 in one year from now, then a dividend of $5 the year after that. For the remaining years the investor believes dividends will grow by 3% each year. Investor l3 takes a different view, believing that the dividend of $4 {that was just paid yesterday} will grow at a rate of 4.5% each year in perpetuity. Investor C thinks the firm will pay a dividend of $5 in one year from now with dividends growing into perpetuity with a growth rate g. Investor C is willing to [Jayr $85 for the stock today. What growth rate does Investor C expect? 1. Under the dividend growth model the price of a stock I. is the future value of all dividends, past and present. Il. is the present value of all future dividends. Ill. can only be calculated for constant dividends. IV. can only be calculated when the growth rate is greater than the discount rate. O I and IV only OII and IV only O II only O III only I and III only