C.
Process of elimination.
A. Nobody deserves to be beaten. Plus, I doubt schools would want to teach someone this way. (Assuming this is a school question)
B. This I don't really have anything to say. This would be marked as a maybe. But the better answer was C, so that's why this was not chosen.
D. Again, nobody deserves to be beaten. It doesn't matter how morally righteous they are. Domestic violence is an inhumane and cruel practice.