GMAT Critical Reasoning (CR) | Critical Reasoning Doubt

In a recent study of people afflicted by the Babblers syndrome an interesting fact was noted. The people suffering from this syndrome consumed dairy products in much larger quantities than people who were not suffering from this syndrome. Thus the study concluded that to reduce the chances of getting afflicted with Babblers syndrome, one should completely avoid the consumption of dairy products or consume them in moderate quantities at best.

The study’s conclusion is based on which of the following
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