a Ob. Which of the following is the best definition of unsystematic risk a. Positively sloped straight line displaying the relationship between expected return and beta. Principle stating that spreading an investment across a number of assets eliminates some, but not all of the risk. A risk that affects at most a small number of assets. Also called unique or asset-specific risks. Od. A risk that influences a large number of assets. Also called market risk. A theory showing that the expected return on any risky asset is a linear combination of various factors. Oe