一道LSAT题请教：2001/10-Section4－20

jasdesky

Archaeologist: A skeleton of a North American mastodon that became extinct at the peak of the Ice Age was recently discovered. It contains a human-made projectile dissimilar to any found in that part of Eurasia closest to North America. Thus, since Eurasians did not settle in North America until shortly before the peak of the Ice Age, the first Eurasian settlers in North America probably came from a more distant part of Eurasia.

Which one of the following, if true, most seriously weakens the archaeologist’s argument?

(A) The projectile found in the mastodon does not resemble any that were used in Eurasia before or during the Ice Age.

(B) The people who occupied the Eurasian area closest to North America remained nomadic throughout the Ice Age.

(C) The skeleton of a bear from the same place and time as the mastodon skeleton contains a similar projectile.

(D) Other North American artifacts from the peak of the Ice Age are similar to ones from the same time found in more distant parts of Eurasia.（A）

(E) Climatic conditions in North America just before the Ice Age were more conducive to human habitation than were those in the part of Eurasia closest to North America at that time.

文中说在NA这个地方发现了一个动物的骨头上面有P这个东东，NA旁边是Eurasia这个地方，因为P和离NA近的Eurasia地方的P'不一样，又因为Eurasia来到NA的最早时间就是这个动物差不多灭绝的时间IA，因此证明最早来NA的不是离NA近的Eurasia的人，而是离NA远的Eurasia的人

这个反对我就不明白了，他是不是不但反对了"远的Eurasia"，而且索性说最先到NA的根本就不是Eurasia的人呀？

哪位大侠帮忙看一下吧

jasdesky

哪位大侠帮一下忙啊

多谢啦