All that can be done ____. [ ]

A. has been done　　　

B. has done

C. have done　　　　　

D. were done

人民法院、人民检察院、公安机关依照法律规定的权限划分对刑事案件的管辖，属于( )

A．立案管辖
B．审判管辖
C．级别管辖
D．地域管辖