The Security Market Line ("SML" or CAPM) is:
a. the same as the Capital Allocation Line ("CAL").
b. a theoretic value, but of little consequence to investors in the real world.
c. a function implying disequilibrium if the returns of a security do not plot on the line.
d. a relationship of Standard Deviation to expected returns.
e. a relationship of Standard Deviation to required returns.