A. from an economic and educational perspective B. from sociological and medical points of view C. from a historical and religious standpoint D. from the aspect of moral principles 参考答案:B 答案解析:推断题。从文章第四段末句和第五段首句可以看出作者是从道德和健康角度说明人们现在追求瘦的原因的,这两个角度分别属于社会学(sociological)和医学(medical)方面,故选B)。