The guideline that governs what a person considers right and wrong is known as?

The guideline that governs what a person considers right and wrong is known as ethics. Ethics refers to the set of moral principles that dictate an individual's behavior and decision-making processes. They provide a framework for evaluating actions and determining the appropriate course of behavior in various situations.

Ethics is often applied in professional contexts, where it helps guide individuals in making decisions that are not only legal but also morally sound, particularly in scenarios where the right course of action may not be immediately clear. This concept encompasses various theories and ideas about what is right or wrong, just or unjust, and can differ significantly across cultures and societies.

In contrast, while morality refers more to personal convictions about right and wrong, ethics tends to be more formalized in the context of professional practices and societal standards. Principles might refer to the overarching rules that guide conduct, but they are not specifically tied to the evaluative process that ethics entails, which is why ethics is the most precise term for the concept described in the question. Integrity relates more to the quality of being honest and having strong moral principles but does not encompass the broader framework of ethical guidelines.