There _____ be any difficulty about passing the road test since you have practiced a lot in the driving school. [ ]

A. mustn't

B. shan't

C. shouldn't

D. needn't

写作内容：有一个人，想偷人家的门上的铃，他知道手一碰到铃，铃就会响起来，他认为，铃声一响，他就会倒霉了。因为耳朵能听到声音，于是他就把自己的耳朵捂起来，然后去偷铃，于是铃仍然响起来，他也就被人发觉了。