LR Question 18 Explanation, by LSATHacks
QUESTION TEXT: Moderate exercise lowers the risk of blockage…
QUESTION TYPE: Sufficient Assumption
CONCLUSION: Moderate exercise lowers the risk of blood clots.
REASONING: If a recent study is correct….etc. a chain of reasoning is presented that exercise lowers blood clots.
ANALYSIS: This is almost a trick question. The argument presents the following chain of reasoning:
Lower cholesterol ➞ less hardening arteries ➞ lower risk of arterial blockage.
And then it tells us that a study shows that exercise lowers cholesterol, if the data are correct. That information would let us reach our conclusion, if we knew the study was accurate. But the study might be wrong!
The right answer simply tells us the data are correct.
___________
- It doesn’t matter what the study investigated. It’s only important to know what the results let us prove.
- This doesn’t help us prove that exercise is a way to prevent clots.
- This doesn’t help us establish that exercise can help with cholesterol. (we’re not sure if the study is correct)
- CORRECT. If the study is correct then everything else falls into place.
- We already know this is true.
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