1sth. that you ought to do because it is morally or socially rig

1sth. that you ought to do because it is morally or socially right 2a duty to be in charge of sb. or sth, so that you make decisions and,can be blamed if sth. bad happens 3sth that you must do as part of your job or duty

A.clip

B.shield

C.toll

D.responsibility

E.Whereas

正确答案是D