What might be a reason that the Beta of a stock is different depending on your method of obtaining it? In other words, why might it be 1.27 when you look on Yahoo but you calculate it to be .98?

	A.	A different proxy for the market is used by the different sources
	B.	Beta is a subjective measure
	C.	A different method of calculating rreturns is used by the different sources
	D.	All of the above are true