Nancy failed to understand what the story wa...

Câu hỏi: Nancy failed to understand what the story was about until she saw the film based on it.

A. Nancy doesn't understand what the story is about.

B. Not until she saw the film based on it did Nancy understand what the story was about.

C. It was until she saw the film based on it that Nancy understood what the story was about.

D. Nancy went to see the film before she read the story.