An analyst does research about capital ass
题型：单项选择题
问题：
An analyst does research about capital asset pricing model. Which of the following statements is most accurate The security market line (SML):（）
A. is a graphical representation of the capital asset pricing model that plots expected retum versus beta for any security.
B. includes all possible combinations of the risk-free asset and any risky portfolio.
C. includes all possible combinations of the risk-free asset and the market portfolio.