- Thu Jun 07, 2018 4:32 pm
#46352
coolbeans747,
Thanks for the question! Spot on - the two things being correlated are angiotensinogen and blood pressure.
As to why (C) is a better answer than (B): the weakness of (B) as an answer is that we are provided no evidence of "other factors that may fully counteract" the effect that disease X has on blood pressure. Because there is no evidence provided of these factors, it isn't a valid criticism to say that the author overlooks this possibility. Answer choice (C), by contrast, speaks to a flaw that is inherent in causal reasoning, which is that we can never be 100% certain that one thing causes another just because another thing happens after it. Therefore, it is the better answer choice.
Hope that helps!
Alex