Prep 第118题想不明白

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

答案是A，但是A 中it的指代一会儿是强调句的作用，一会儿是指代WP，这样明显的错误也能作为正确选项嘛？

不好意思，看到题目下面的解释了，现在没有问题啦