The security market line (SML) is

	a.	the line that represents the expected return-beta relationship.
	b.	the line that is tangent to the efficient frontier of all risky assets.
	c.	the line that describes the expected return-beta relationship for well-diversified portfolios only.
	d.	the line that represents the expected return-standard deviation relationship.
	e.	also called the capital allocation line.