Which one of the following statements concerning the dividend growth model is correct? Select one: a. The model assumes that growth is constant, and the discount rate is equal to 1 . b. The price per share increases as the the rate of growth decreases. c. The total return is equal to dividend yield minus capital gains. d. The discount rate has to be lower than the growth rate. e. The model can be used to determine the stock price of companies using estimated future dividends