it和one的区别求问，OG13第100题

zqgypx

100. Heavy commitment by an executive to a course of action,  especially if it has worked well in the past, makes it likely to miss signs  of incipient trouble or misinterpret them when they do appear.

(A)  Heavy commitment by an executive to a course of action, especially if it has worked well in the past,  makes it likely to miss signs of incipient trouble or misinterpret them when  they do appear.

(B) An  executive who is heavily committed to a course of action, especially one that worked well in the past, makes missing signs of incipient  trouble or misinterpreting ones likely when they do appear.

(C) An  executive who is heavily committed to a course of action is likely to miss or  misinterpret signs of incipient trouble when they do appear, especially if it  has worked well in the past.

(D) Executives' being heavily committed  to a course of action, especially if it has worked well in the past, makes them likely to miss signs of incipient trouble or misinterpreting them when  they do appear.

(E)  Being heavily committed to a course of action, especially one that has worked  well in the past, is likely to make an executive miss signs of incipient  trouble or misinterpret them when they do appear.

求问，A选项中的it有没有指代呢？ 有的话，是a course of action吗？
另外，正确答案E用了one，没用it，是不是因为这里worked well的不是之前提及的那个a course of action，而是new copy？
感谢NN答复~

hydrophobia

1.OG上有讲解：(make it likely) it指代不明
2.new copy是啥? 应该是a course of action 的其中一个例子 这个例子在过去很好用