Question Type:
Inference/Most strongly supported
Stimulus Breakdown:
This question tells us a bit about the Kuna people, focusing on the differences between two groups. The ones who have stayed on the islands have a low incidence of high blood pressure; the ones who have moved to the mainland don't see this benefit. We also learn those on the islands drink a lot of cocoa (which has flavonoids), while those on the mainland do not.
Answer Anticipation:
This question is all about the comparisons. We learn that a group doesn't have blood pressue issues, and they also drink cocoa. A similar group (these people moved to the mainland, which means they were, at some point, living on the islands) doesn't drink cocoa, and doesn't have the same lack of blood pressure issues. For a Must be True, we'd be at a bit of a loss, but for a most strongly supported question, it's looking like this is pushing us in the direction of stating cocoa prevents blood pressure issues.
Correct Answer:
E
Answer Choice Analysis:
(A) Out of scope. We just talk about cocoa, not other flavonoid-rich foods.
(B) Out of scope. The argument only cares about actual effects, not whether there is a belief about those effects.
(C) If anything, contradicted. The two groups that both hail from the island (those who are still there and those who are moved), if anything, would be genetically similar. However, we see a difference between the blood pressure of the groups.
(D) Unwarranted comparison. We know that this group of Kuna doesn't have a low incidence of high blood pressure, but they may very well have an average incidence, instead of an above-average incidence.
(E) While we normally wouldn't pick a causality answer in an inference question that's based on a correlation, this is a most strongly supported question instead of a must be true. The argument also controlled for the population by sticking with Kuna who had spent some time on the island (some who stayed; others who moved). Especially with the issues in the other answers, we'd be fine picking this answer and moving on.
Takeaway/Pattern: Most strongly supported questions have some wiggle room. This question is pushing the wiggle room a bit, but, especially in light of the other answers, you should have ultimately decided to pick this and move on.
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