Critical Reasoning (CR) | Re: LSAT CR "The five senses have traditionally been viewed as distinct"

I picked C, and when saw OA, did a doubletake. But probably this is a form of 'two layers' in reasoning?
My two cents:
The five senses have traditionally been viewed as distinct yet complementary. Each sense is thought to have its own range of stimuli that are incapable of stimulating the other senses. However,recent research has discovered that some people taste a banana and claim that they are tasting blue, or see a color and say that it has a specific smell . This shows that such people, called
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