Principle JustifyDiff: Medium

Logic Breakdown

Passage Summary: Since more people use lawn chemicals and cleaners than medicine, and more users mean more potential victims, we should prioritize testing the cleaners over the medicine.

Conclusion: It is more vital to rigorously test the safety of household maintenance products than it is to test prescription drugs.

Reasoning: Household products are used by more people than prescription drugs are, and a higher number of users translates to a higher number of people at potential health risk.

Analysis: The argument makes a jump from a quantitative fact (more users) to a moral or procedural priority (more important to test). It assumes that the primary factor in determining testing priority should be the sheer volume of the population exposed to the product. To justify this, we need a principle that explicitly links the 'number of people at risk' to the 'importance of safety testing.' Look for an answer that establishes this proportional relationship as a rule for safety standards.

Passage Stimulus

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15.

Which one of the following principles, if valid, most helps to justify drawing the conclusion in the argument above?

Correct Answer
C
Correct. It directly states that the more people whose health might be at risk from a product, the more important testing that product becomes. Given that more people use household products, this principle justifies the conclusion that testing them is even more important than testing prescription medicines.
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