Answer:
D. Ethics.
Step-by-step explanation:
Ethics is the study of the axiological values through which a person relates to others and to oneself within a society, that is to say, it is the study of what a person considers to be good as opposed to bad or disadvantageous, what a person chooses as valuable and tries to act and behave accordingly. Most ethical norms are not only personal, but shared socially and culturally.