GMAT Critical Reasoning (CR) | Re: Considerable efforts are required to prevent spam. During

This seems to be a revised microedu.com practice test question. Not exactly household names in GMAT preparation, unfortunately.

You've probably all seen my usual warning several bazillion times: the GMAT spends between $1500 and $3000 developing every official GMAT question, and even the best test-prep companies can't compete with that. So please don't spend too much of your valuable study time on this one.
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