关于it指代的问题

关于it的指代是根据其逻辑意思判断指代对象？还是如果有歧义就不选择带it的选项呢？

还有下面这道题目

When drafting the Declaration of Sentiments that was adopted at the Seneca Falls Women’s Rights Conventions in 1848, included in it by the author, Elizabeth Cady Stanton, was a call for female enfranchisement.

A, When drafting the Declaration of Sentiments that was adopted at the Seneca Falls Women’s Rights Conventions in 1848, included in it by the author, Elizabeth Cady Stanton, was a call for female enfranchisement.

B. Including a call for female enfranchisement, a draft of the Declaration of Sentiments was adopted at the Seneca Falls Women’s Rights Conventions in 1848 that Elizabeth Cady Stanton wrote.

C. When the Declaration of Sentiments drafted by Elizabeth Cady Stanton was adopted at the Seneca Falls Women’s Rights Convention in 1848, a call for female enfranchisement had been included in it .

D. A call for female enfranchisement, included in Elizabeth Cady Stanton’s draft of the Declaration of Sentiments in 1848, that was adopted by the Seneca Falls Women’s Rights Convention.

E. When Elizabeth Cady Stanton drafted the Declaration of Sentiments that was adopted at the Seneca Falls Women’s Rights Convention in 1848, she included in it a call for female enfranchisement.

E中的it不会产生指代Women’s Rights Convention的歧义吗?还是因为Women’s Rights Convention在that从句中的关系所以优先指代主句宾语the Declaration of Sentiments呢？

C中同样有it 如果不考虑C完成时态的错误的话 it的指代有没有问题呢？

不知道我有没有表达清楚意思

请大家指教

up～

大家不要因为我的问题太弱54我啊～～