The Efficient Market Hypothesis Suggests That

The efficient market hypothesis suggests that

A) investors should not try to outguess the market by constantly buying and selling securities.
B) investors do better on average if they adopt a "buy and hold" strategy.
C) buying into a mutual fund is a sensible strategy for a small investor.
D) all of the above are sensible strategies.
E) only A and B of the above are sensible strategies.