She must have arrived there last night , _______ she ?

A didn't             B. haven't

C. needn't          D. mustn't 

从所给的四个选项中，选出最佳答案

She must have arrived there last night, ______ she?　　　

[　　]

A．didn't　　　 B．haven't　　　C．needn't　　　D．mustn't