请教OG 第6题

yangbaozi

6. In late 1997, the chambers inside the pyramid of the
Pharaoh Menkaure at Giza were closed to visitors for
cleaning and repair due to moisture exhaled by
tourists, which raised its humidity to such levels so
that salt from the stone was crystallizing and fungus
was growing on the walls.
(A) due to moisture exhaled by tourists, which
raised its humidity to such levels so that salt
from the stone was crystallizing
(B) due to moisture that tourists had exhaled,
thereby raising its humidity to such levels that
salt from the stone would crystallize
(C) because tourists were exhaling moisture, which
had raised the humidity within them to levels
such that salt from the stone would crystallize
(D) because of moisture that was exhaled by
tourists raising the humidity within them to levels
so high as to make the salt from the stone
crystallize
(E) because moisture exhaled by tourists had raised
the humidity within them to such levels that salt
from the stone was crystallizing
答案选E，虽然我选对了，但是对OG中的这句解释不是很懂，请高手赐教：
为什么C和D选项中“The pronoun them seems to refer to tourists,which is nonsensical”;而E选项中“and them clearly refers to chambers.”？

kikisunflower

C句子结构：
The chambers were v.-ed, because tourists were v.-ing, which raise sth. in them...
them指代前面出现过的复数名词，前面有两个复数名词，一个chambers一个tourists，而且tourists还离得近点，有歧义。

E句子结构：
The chambers were v.-ed, because moisture ... had raised sth. in them...
them指代前面出现过的唯一的复数名词，chambers，无歧义。by tourists出现在修饰moisture的定语中，不可能做them的antecedent。

yangbaozi

哦，原来酱紫，谢谢楼上了，分析的很快很易懂。

瓜瓜不瓜

那D的指代怎么解释？ 也是做后置定语的啊

yangbaozi

瓜瓜说得也有道理，好像D 和E 很相似啊，为什么D的不对，E的又对呢？