求助OG12-6代词指代问题！~

mandybabay

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.
(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
其他选项的指代问题我都明白~只有正确选项E里，我有些疑问them为什么不会有歧义指代离它更近的visitors呢？
求NN解答~先谢过的！~

triangel8866

只是与你切磋，不算回答

ABD的问题都比较严重
只剩下C和E，C的句子表达起来不够顺畅，逻辑搭配没有E更合适；既然CE都有with them这个指代可能不是考点（这个说法比较功利）

leslielu

which 指代
and连接平行结构

bennywang

我想还是语言和内容本身的关系吧。because of 接名词，一般是说Abecause of B，潜在意思中AB是不同事物，这一来里面就没有代词可以恰当的对应前述内容了。然而because接的是从句，起到修饰主句的作用，可以使里面的代词对应前述内容，而且because本身就是个加强逻辑的词，很容易将原因状语中的代词指向主句，再加上一个表示直接作用的完成时态，就全了。

mandybabay

谢谢童鞋们的解答啦！~LS讲的挺有道理的~还是语义的问题~这几天做题也发现代词并不是绝对的就近指代~还是语义清楚为主~~~