Which of the following are assumptions of the simple CAPM model?
I. Individual trades of investors do not affect a stock's price
II. All investors plan for one identical holding period
III. All investors analyze securities in the same way and share the same economic view of the world
IV. All investors have the same level of risk aversion
a. I, II and IV only
B. I, II and III only
c. II, III and IV only
d. I, II, III and IV
Answer: B. I, II and III only