Free LSAT Practice Question

Question 1 of 1
ID: LSAT-LR-39
Section: Logical Reasoning
Topic: Weaken the Argument
Difficulty level: Easy

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Pet food companies claim that adding turmeric extract to cat kibble strengthens feline immune systems. In a recent experiment, researchers fed one group of shelter cats kibble infused with turmeric extract for six weeks, while a control group received the same kibble without the extract. By the end of the study, the turmeric-fed cats averaged 15 percent higher blood-cell counts associated with immune response than the control cats did.

Which one of the following, if true, most weakens the argument?

AThe turmeric-free kibble given to the control cats contained slightly fewer calories than the turmeric-infused kibble.

BShelter cats often experience elevated stress levels when moved to a new housing area within the shelter.

CBlood-cell counts linked to immune response can rise temporarily after cats consume meals high in certain fats.

DTurmeric extract is more expensive to source than any other botanical additive currently used in commercial cat food.

EThe researchers did not measure how much kibble each cat in either group actually consumed during the study.

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