Stock A's beta is 1.7 and Stock B's beta is 0.7. Which of the following statements must be true about these securities?
a. Stock B must be a more desirable addition to a portfolio than A.
b. Stock A must be a more desirable addition to a portfolio than B.
c. In equilibrium, the expected return on Stock A should be greater than that on B.
d. In equilibrium, the expected return on Stock B should be greater than that on A.
e. When held in isolation, Stock A risk is greater than that on B
PLEASE, EXPLAIN WHY?