Which of the following statements is correct?

	a.	The SML relates required returns to firms' systematic (or market) risk. The slope and intercept of this line cannot be controlled by the financial manager.
	b.	When company specific risk has been diversified, the inherent risk that remains is market risk which is constant for all securities in the market.
	c.	A stock with a beta of 1.0 has zero systematic (or market) risk.
	d.	Portfolio diversification reduces the variability of returns on an individual stock.
	e.	Risk refers to the chance that some unfavorable event will occur, and a probability distribution is completely described by a listing of the likelihood of unfavorable events.