Critical Reasoning (CR) | Re: The introduction of new drugs into the market is frequently

Hi Experts - For this question (https://gmatclub.com/forum/the-introduc ... 20355.html), my pre-thinking was that there must be a shortage of patients who can or are encouraged to volunteer. So when I looked at option C - I assumed that the situation is that although there are patients who are volunteering but half of them have been receiving a nonactive
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