The Efficient Market Hypothesis Rests on Which of the Following

The efficient market hypothesis rests on which of the following assumptions?
I. Information is widely available to all investors almost simultaneously.
II. Investors react quickly to new information.
III. Investors correctly interpret all available information.
IV. Events which affect the market occur randomly.

A) I and II only
B) I, II and III only
C) I, III and IV only
D) I, II, III and IV