Critical Reasoning (CR) | Studies have shown that levels of depression among those diagnosed

HiPrashant10692 ,

As explained in the post above this one, E weakens the author's point because it supports the idea that light is the main factor. We are looking for an alternative explanation, and B gives us that answer.

Studies have shown that levels of depression among those diagnosed with clinical depression actually increase in the springtime. The results of the studies were no different for subjects who spent most of their days outdoors than for those
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