She took the train last night, so she wasn't late.

Câu hỏi: She took the train last night, so she wasn't late.

A. If she took the train last night, she would be late.

B. Had she not taken the train last night, she would have been late.

C. Unless she hadn't taken the train last night, she would be late.

D. If she had taken the train last night, she would have been late.