GMAT Reading Comprehension (RC) | Re: Although some progress has been made in the last two decades

1. The primary purpose of the passage is to
A. present information that goes against a particular finding about a disease - Incorrect - the passage does not provide information that goes against a particular finding.
B. propose further investigation to come to a conclusive result in a dispute about the cause of a disease - Incorrect - the passage does not propose a further investigation. The passage concludes that APOE4 may still be responsible for Alzheimer despite CDC findings.
C. resolve the
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