Student: Professor Wang, must I hand in the paper this week?Professor Wang: No, ______. Yo
Student: Professor Wang, must I hand in the paper this week?Professor Wang: No, ______. You can hand it in next week.
A.you mustn"t
B.you can"t
C.you needn"t
D.you shouldn"t
请帮忙给出正确答案和分析,谢谢!