22. George: The economics taught in college is very confusing-and that's because it's all wrong. Harold: If it's all wrong, why is college economics still force-fed to students?
George: It's very difficult to learn something that's all wrong, and if, by chance, someone does waste all that time and learn it, he or she will be inclined to defend it ferociously and pass it on to others.
Which one of the following, if true, would most directly challenge George's reasoning?
(A) Many college graduates who have taken economics go on to successful careers in a variety of other fields.
(B) College students who major in economics tend to earn higher grades in economics than in their other subjects.
(C) "Right" and "wrong" are relative terms in the field of economics.
(D) Many economics professors agree with journal articles that strongly criticize college economics.
(E) Interviews five years after graduation show that economics majors are just as likely to say that their college experience was enjoyable as are those who did not major in economics.
would most directly challenge George's reasoning? 是说要削弱什么？削弱逻辑推理过程，还是论据论证随便削弱哪个都行？
challenge George''s reasoning应该是削弱推理的过程。he or she will be inclined to defend it ferociously and pass it on to others.是针对why is college economics still force-fed to students来的，是用这个来回答H的问题从而使得角的观点成立，这个就是reasoning的。D选项就是针对he or she will be inclined to defend it ferociously and pass it on to others. 又进行了说明，说明这个说法也是不对的。
原文：someone does waste all that time and learn it, he or she will be inclined to defend it ferociously and pass it on to others
而D说很多教授批评学校里的经济学,不正是否定了原文要吗？
所以D并不是诉诸权威
challenge的是:someone does waste all that time and learn it, he or she will be inclined to defend it ferociously and pass it on to others
要知道在美国教书的一般都是Ph.D.毕业当助教,associate professor然后是professor一步一步来的.所以professor都是someone does waste all that time and learn it. 如果这些教授没有defend it,就反驳了原文的话. 所以是D.
professor指大学教授.
