Among people who live to the age of 100 or more, a large proportion have led "unhealthy" lives: smoking, consuming al...

Julie on August 30, 2019

Answer Explanation

Hi LSAT Max, When I first did this problem, it seemed as if none of the answer choices were a good fit. I think I see why (E) is correct, but can someone confirm whether "exceptionally long-lived people are genetically disposed to having long lives" is what supports the mention of siblings in the answer choice? Thanks!

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Irina on August 30, 2019


That's correct - the argument tells us that longevity is genetically predetermined rather than determined by behavioral factors. Since siblings are genetically similar, this fact strengthens the argument.

Let me know if you have any further questions.