please provide the genuine correct option among all of these

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