It Is Difficult to Say Whether Welfare "Causes" Daughters from Welfare

Multiple Choice

It is difficult to say whether welfare "causes" daughters from welfare families to be more likely to participate in the welfare system themselves because

A) the same factors that contribute to a mother's welfare status can also contribute to her daughter's welfare status
B) no research has been done on this topic
C) economists are unconcerned with questions about welfare status
D) if two factors occur together, then one must cause the other
E) it is possible that the daughter's welfare status "causes" the welfare programs