There was plenty of time. She needn't/couldn't have hurried.

[sitifan]

There was plenty of time. She ________________________.
(A) mustn't have hurried
(B) couldn't have hurried
(C) must not hurry
(D) needn't have hurried
[National College Entrance Examination, 1987]
The answer to the above question is option D.
Is option B acceptable to native speakers?

 

[jutfrank]

No, it doesn't make sense.