— Have you got your result of the final? 

— Not yet. I was told that the papers ______. [ ]

A. were not grading

B. have already been graded

C. were still being graded

D. have not grading

小强对历史巨著《资治通鉴》很感兴趣，作了如下归纳。但有一项错误，是哪一项呢

A．是一部纪传体通史巨著

B．叙述了从战国到五代1300多年的历史

C．作者北宋司马光

D．书名的含义是总结出许多的历史经验教训，供统治者借鉴