下列情景中，属于正义行为的是 [ ]

A、翻越交通护栏到对面餐厅就餐　　

B、举报某人的贪污腐败行为

C、殴打生活无着落的流浪人员　　　

D、为朋友“两肋插刀”，帮朋友“摆平”纠纷

My father is a doctor. He _______ on Saturday or Sunday. [ ]

A. no work            

B. isn't work    

C. don't work          

D. doesn't work