Given below are six sentences, out of which sentences A and F are in the correct position. Sentences B, C, D and E are in a jumbled order. Select the option that gives the correct order.

A. Discipline is not a thing to be thrust upon our boys and girls from outside.
B. On the contrary, it is purely based on their conscience.
C. It is not at all based on fear or punishment as forced discipline.
D. This type of discipline is called self-discipline.
E. It must come automatically from the core of their heart.
F. It should be controlled by the love and affection of the teachers.