Weaken | Example | Logical reasoning | LSAT | Khan Academy

Watch a demonstration of one way to approach a "Weaken" question on the logical reasoning section of the LSAT. Created by Sal Khan. View more lessons or practice this subject at www.khanacadem....
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[@menarentlogical]

So, it's looking like the right answer introduced an alternative to getting the nutrients other than vitamins. Is that common across all weaken questions?