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#12 - In 1980 health officials began to publicize the

LSAT Novice
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I am having trouble understanding why answer choice B is incorrect and why D is correct.
Robert Carroll
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The paradox in the stimulus is that one would expect melanoma cases to decline if people are taking the better advice on avoiding the sun. Answer choice (D) addresses this by showing that the melanoma cases might not have increased in 1982, because better diagnostic methods could detect more cases than before. Thus, the cases aren't increasing; detection methods are resulting in more DETECTED cases.

Answer choice (B) does not address the paradox because we already know that people were more likely to have unhealthy practices relating to the sun before 1980, when the better advice came out. This would help explain melanoma cases before 1980; it can't explain the higher reported cases in 1982.

Robert Carroll