快考试了，求助一道prep!

一道考过的题

The proliferation of so-called cybersquatters, people who register the Internet domain names of high-profile companies in hopes of reselling the rights to those names for a profit, led to passing the Anti-Cybersquatting Consumer Protection Act in 1999, allowing companies to seed up to $100000 in damages against those who register domain names with the sole intent of selling them later.

B.  the passage of the Anti-Cybersquatting Consumer Protection Act in 1999, which allows companies to seek up to $100000 in damages against those who register domain names with the sole intent that they will sell

C.  the passage in 1999 of the Anti-Cybersquatting Consumer Protection Act, which allows companies to seek up to $100000 in damages against those who register domain names with the sole intent of selling

答案为C，解释说因为in 1999若放在Act 之后则既有可能修饰Act,也有可能修饰passage,产生了歧义。但是C选项就没有这样的歧义，in 1999只能修饰passage了。

但是prep上的一道题的解释却让我很迷糊。

118. It was only after Katharine Graham became publisher of The Washington Post in 1963 that it moved into the first rank of American newspapers, and it was under her command that the paper won high praise for its unrelenting reporting of the Watergate scandal.

(A) It was only after Katharine Graham became publisher of The Washington Post in 1963 that it moved into the first rank of American newspapers, and it was under her command that the paper won high praise

 (E) Moving into the first rank of American newspapers only after Katharine Graham's becoming its publisher in 1963, The Washington Post won high praise under her command

 解释：(A) 正确，由and连接的两个并列的强调句，注意此处两个并列结构中的it不是形式主语，而是强调结构中的it。

 (E) Katharine Graham’s becoming的表达方式不及直接用谓语动词的表达方式更简洁有效。

按照答案的解释，E的唯一的问题就是不太简洁，但是大家有没有注意到A选项的in 1963既可以修饰The Washington Post,也可以修饰KG became publisher? 还望大牛的解答！

The proliferation of so-called cybersquatters, people who register the Internet domain names of high-profile companies in hopes of reselling the rights to those names for a profit, led to passing the Anti-Cybersquatting Consumer Protection Act in 1999, allowing companies to seed up to $100000 in damages against those who register domain names with the sole intent of selling them later.

B.  the passage of the Anti-Cybersquatting Consumer Protection Act in 1999, which allows companies to seek up to $100000 in damages against those who register domain names with the sole intent that they will sell

很久没有来CD了，最近又对学习英语产生了一些兴趣，所以上来答答疑，就从这一题开始吧。

这一题的要点不在你说的时间状语放哪里，而在于which的非限定性修饰问题，如果把时间状语放在which前，如B所示，则which有修饰1999的嫌疑，但是按照名义理解， which应该理解为the passage，这样一种修饰不清的情况在GMAT里面是绝对不允许的，所以B不对。

eSpirit,你说的which就近指代的这个我是明白的，我只是对时间状语的修饰歧义有疑问。

in 1999放在Act 之后到底有没有可能产生歧义？如果A和C后面没有which句,而是就以in 1999结束了这句话，那么还要不要考虑歧义的问题？

没人能解答吗？