新prep1-80，逻辑题求教

奇奇齐齐七

In many scientific disciplines, scientists generally do not do highly creative work beyond the age of forty, a tendency that has normally been taken to show that aging carries with it a loss of creative capacity.  However, by the age of forty most scientists have been working in their chosen field for at least fifteen years, so an alternative explanation is that spending too long in a single field reduces the opportunity for creative thought.

Investigating which of the following would be most useful in choosing between the competing explanations described above?

A. Whether among those scientists who do highly creative work beyond age forty a large proportion entered their field at a considerably later age than is common

B. Whether scientists' choice of research projects tends to be influenced by their own belief that their most creative work will be done relatively early in their career

C. Whether scientists who are older than forty tend to find more satisfaction in other activities, such as teaching and mentoring, than they do in pursuing their own research

D. Whether funding agencies are more inclined to award research grants to scientists who are veterans in their field than to scientists who are relative newcomers

E. Whether there is significant variation among scientific fields in the average age at which scientists working in those fields are at their most productive





答案是A，为什么C不可选呢？请教各位NN~

pengfu

问题是怎样有效的判断上述两个结论
A肯定可以，因为就是论证是不是大部分超过40岁却仍然富有创造力的人是晚于一般人进入这个领域
C说的是否超过四十岁的人更容易在其他的领域发现兴趣之处，比在自己的领域。这与文章中的富有创造力毫无关系，应该是说是否超过四十岁的人在别的他很晚才接触的领域富有创造力，比在他自己的领域。