medium · LSAT Logical Reasoning

This argument matches the flawed structure of which of the following?

1. Every professional athlete is in great physical shape; John is in great physical shape, so John must be a professional athlete.
2. Only certified politicians may cast a vote on this particular bill; Senator Smith is a politician, so she must be voting on it now.
3. All birds lay eggs, and yet this particular animal does not lay any eggs at all, so this animal cannot possibly be a bird.
4. Some cars on the lot are painted red; my own vehicle happens to be a car, so it is at least possible that my vehicle is red.
5. Every honors student studies daily without fail; Dana does not study every single day, so Dana cannot be an honors student.

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