What will lead students to success in distance education courses

A．The recognition of distance education.
B．The difference between distance education and self-study.
C．The definition and features of distance education.
D．The courses provided in distance education.

A．Teachers and students seldom meet each other in class of distance education.
B．Students can have their lessons in whatever order they like in distance education.
C．Students can study at their own pace in distance education.
D．It will take students a long time to get feedback of their assignments in distance education.