Which of the following statements is NOT CORRECT?

a. Investors expect higher return by taking greater risk; here risk means market risk.

b. Any change in the beta is likely to affect the required rate of return on a stock, which implies that a change in beta will likely have an impact on the stock's price, other things held constant.

c. The capital Asset Pricing Model/SML dictates a positive relationship between risk and return.

d. The slope and intercept of this Security Market Line can be influenced by a manager's actions.