Passage Summary: The Kuna people have healthy blood pressure while living on their native islands and drinking a specific type of cocoa, but their blood pressure rises when they move to the mainland where that cocoa isn't part of their diet.

Reasoning: Kuna living on islands have low blood pressure and drink flavonoid-rich cocoa, whereas Kuna who move to the mainland lose these health benefits and do not consume the same cocoa.

Analysis: Since this is a 'Most Strongly Supported' question, we need to find a statement that follows logically from the provided facts. The data shows a strong correlation between the consumption of minimally processed cocoa and lower blood pressure within the same ethnic group. When the environment and diet change (moving to the mainland and losing the cocoa), the health benefit disappears. This suggests that the cocoa—specifically the flavonoids—is likely a contributing factor to their cardiovascular health. Look for an answer that links the cocoa consumption to the blood pressure difference.