Which of the Following Describes the Highest Stage of Moral

Which of the following describes the highest stage of moral development?

A) Following self-chosen ethical principles even if they violate the law.
B) Following rules only when it is in your immediate interest.
C) Sticking to rules to avoid physical punishment.
D) Maintaining conventional order by fulfilling obligations to which you have agreed.
E) Upholding absolute values and rights regardless of the majority's opinion.