Doctor: Angiotensinogen is a protein in human blood. Typically, the higher a person' s angiotensinogen levels are, the higher that person' s blood pressure is. Disease X usually causes an increase in angiotensinogen levels. Ttherefore, disease X must be a cause of high blood pressure. The doctor 's argument is most vulnerable to criticism on which one of the following grounds?
A: It overlooks the possibility that even if a condition causally contributes to a given effect, other factors may fully counteract that effect in the presence of that condition.
B: It takes for granted that if one phenomenon often causes a second phenomenon and that second phenomenon often causes a third phenomenon, then the first phenomenon cannot ever be the immediate cause of the third.
C: It illicitly infers, solely on the basis of two phenomena being correlated, that one causally contributes to the other.
D: It confuses a necessary condition for a sufficient condition.
Choose A, B, C or D as your solution.
C