help 句子结构看不懂的。。。。

winonawu

25.       A recent study of ancient clay deposits hasprovided new evidence supporting the theory of global forest fires ignitedby a meteorite impact that contributed to the extinction of the dinosaursand many other creatures some 65 million years ago.

(A) supporting the theory of globalforest fires ignited by a meteorite impact that

(B) supporting the theory thatglobal forest fires ignited by a meteorite impact

(C) that supports the theory ofglobal forest fires that were ignited by a meteorite impact and that

(D) in support of the theory thatglobal forest fires were ignited by a meteorite impact and that

(E) of support for the theory of ameteorite impact that ignited global forest fires and

D为什么错?
还有, 原文是 a meteorite impact 导致了 the extinction.. 但是B不就成了 fires 导致了 the extinction 了么？ 这不是改变原句意思了么？


635.        Several recent studies suggest that a child born into a family whose members have allergies will probably themselves develop allergies following the onset of a minor viral infection.

(A) a child born into a family whose members have allergies will probably themselves develop allergies

(B) children born into families whose members have allergies will probably themselves develop allergies

(C) a child born into a family the members of which have allergies will probably develop an allergy

(D) in those families where members have allergies, children will probably develop allergies themselves

(E) children born into a family in which there are allergies will themselves probably develop an allergy

C为什么错？

many thanks!

复活节彩蛋

第二题C的错误：

a child born into a family 逗号 the members of which have allergies 逗号 will probably develop an allergy

a child born into a family, the members of which have allergies, will probably develop an allergy