Necessary Assumption question. "An article claims that many medical patients have an instinctual ability..." Can anyone explain why the answer's B?
http://7sage.com/lsat_explanations/lsat-76-section-2-question-18/
... placed medication M as the necessary. But I thought when you ... and the not in the necessary side you can negate the ... necessary side twice. I guess what ... " written on the sufficient and necessary conditional. If not is on ...