What is the difference between correlation analysis and regression analysis?

	A.	There is no difference between the two since they both provide information about the strength of relationship between two variables.
	B.	regression provides a description of how one variable causes the other to change, while correlation analysis only describes the strength of the relationship between two variables.
	C.	regression requires that one variable be explained or predicted by the other, whereas correlation analysis makes no distinction between the response and explanatory variables.
	D.	All of the answers are correct.