The sentence needs commas because the participial phrase is essential.
Detention aims to make a discipline among the students who break rules and policies in school.
It is been said that if a student violates or breaches a policy or rule must be taken for such disciplinary action as it would serve as a consequence for a certain undesirable act. It would be considered that detention instills self-realization that is beneficial to the student's development and learning.
B. because folktale usually has to deal with magical animal or elements.
The first sentence is correct.
It really doesn't............................