The remark was so unexpected that she didn’t know what to say. (It was ............ )

• A. It was such an unexpected remark that she hadn’t known what to say.
• B. It was such an unexpected remark that she didn’t know what to say.
• C. It was such an unexpected remark that she doesn’t know what to say.
• D. It was such an unexpected remark that she have not known what to say.