Sufficient AssumptionDiff: Easy
Logic Breakdown
Passage Summary: The author claims that if you eat a lot of bad fat, you can fix the health risk just by eating more good fat alongside it.
Conclusion: People with high-saturated-fat diets can reduce their heart disease risk simply by adding unsaturated fats to their intake.
Reasoning: The argument points out that replacing saturated fats with unsaturated fats decreases risk, and that high saturated fat intake is typically linked to higher risk.
Analysis: We have a classic 'Gap' here between the concepts of 'replacing' and 'increasing.' The evidence says that swapping one for the other helps, but the conclusion jumps to the idea that just adding the good stuff is enough. To guarantee this conclusion is true, we need an assumption that unsaturated fat has a protective effect that works even when the saturated fat isn't removed. Look for an answer that bridges this gap by stating that the benefits of unsaturated fat aren't dependent on the reduction of saturated fat.
Conclusion: People with high-saturated-fat diets can reduce their heart disease risk simply by adding unsaturated fats to their intake.
Reasoning: The argument points out that replacing saturated fats with unsaturated fats decreases risk, and that high saturated fat intake is typically linked to higher risk.
Analysis: We have a classic 'Gap' here between the concepts of 'replacing' and 'increasing.' The evidence says that swapping one for the other helps, but the conclusion jumps to the idea that just adding the good stuff is enough. To guarantee this conclusion is true, we need an assumption that unsaturated fat has a protective effect that works even when the saturated fat isn't removed. Look for an answer that bridges this gap by stating that the benefits of unsaturated fat aren't dependent on the reduction of saturated fat.
Passage Stimulus
Passage Redacted
Unlock Full Passage9.Which one of the following, if assumed, most helps to justify the reasoning above?
Correct Answer
A
A supplies the missing link: if adding unsaturated fat leads people to eat less high–saturated-fat food, then increasing unsaturated fat amounts to a replacement of saturated with unsaturated fat, which (per the premise) lowers heart disease risk. That makes the conclusion follow.
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