Critical Reasoning (CR) | Re: Assumption Revision: Although there has been great scientific

I agree A might be best of the rest, but it certainly isn't the best. It talks about only cities,whereas nowhere in the premise or the conclusion or even the stimuli has it been mentioned that "major population centers" are mostly coastal cities. Bad question, I'd say! part of the reason, I am always scared to do CR from any company other than OG or GMATPrep

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