The Market Risk Premium
A)can Be Defined by the Difference $\bar { R } _ { M }$

The market risk premium

A) can be defined by the difference between the expected market return and the risk-free rate.
B) is the reward for bearing nondiversifiable risk.
C) is the slope of the security market line.
D) can be expressed as ( $\bar { R } _ { M }$ - $R _{f}$ )