1. Which of the following statements about beta is correct?

   	a.	A stock's standard deviation of returns is a measure of the stock's stand-alone risk, while its beta measures its unsystematic risk.
   	b.	A portfolio that contains 100 high-beta stocks will not be riskier than a portfolio containing 100 low-beta stocks.
   	c.	If the returns on a stock vary widely, then its standard deviation is large, and as a result, the stock will also have a high beta coefficient.
   	d.	A stock that is perfectly positively correlated with the market cannot have a beta coefficient equal to 1.0.
   	e.	A stock with a negative beta has very high firm-specific risk.