A decrease in which of the following will decrease the current value of a stock according to the dividend growth model? I. dividend amount

II. number of future dividends, provided the current number is less than infinite

III. discount rate

IV. dividend growth rate

a. I and II only

b. III and IV only

c. I, II, and III only

d. I, II, and IV only

e. I, II, III, and IV