Some freelance journalists sell their work to magazines that have lax editorial standards. No self-respecting writer sells his or her work to magazines that have lax writers are not freelance journalists.
What this question is testing
Conclusion
Some self-respecting writers are not freelance journalists. The argument wants to tell us something about who is NOT a freelancer.
Evidence
Some freelance journalists sell to trashy magazines. No self-respecting writer would touch those magazines. So far, so good — those freelancers who sell to the trashy magazines clearly are not self-respecting writers.
Evaluate
Here is where the argument pulls a fast one. The premises prove that some freelancers lack self-respect (the ones hawking their work to editorial dumpster fires). But the conclusion flips it: "some self-respecting writers are not freelancers." That does not follow at all. Knowing that some freelancers are not self-respecting tells us nothing about whether self-respecting writers are or are not freelancers. The argument looked at one group and drew a conclusion about a different group entirely — like proving some dogs are not cats and concluding some cats are not dogs. The second statement might be true, but it does not follow from the first.
Goal
Find the answer that commits the same directional swap: premises that prove "some X are not Z" but a conclusion that claims "some Z are not X."
Reading along? Open the full official question in LawHub — we show a fragment here and keep the reasoning in our own words.