If We Are Interested in Establishing That Two Variables Are

Multiple Choice

If we are interested in establishing that two variables are related in a causal way (A causes B) ,three conditions must be satisfied.Among the following items,which is not a factor in this determination?

A) A and B must be the result of another variable, C.
B) A must occur prior to B.
C) As A changes, so does B.
D) If B changes, A will change as well.
E) If C changes, A will change as well.