Which concept refers to moral principles that guide a person's behavior?

The concept that refers to moral principles guiding a person's behavior is ethics. Ethics encompasses the values and beliefs that influence how individuals should act, reflecting notions of right and wrong. It serves as a framework for making decisions and evaluating actions within personal, professional, and social contexts.

In contrast, legal standards pertain to laws and regulations established by governmental bodies that dictate permissible and impermissible actions. These standards are enforceable and carry legal consequences, which can differ significantly from ethical considerations.

Regulations are specific rules or directives made and maintained by authorities aimed at ensuring compliance with laws. While regulations may align with ethical norms, they do not necessarily embody the broader moral principles that ethics represents.

Guidelines provide general recommendations or best practices for behavior or decision-making, but they lack the moral underpinning that defines ethics. Guidelines may inform ethical behavior, but they do not embody the moral principles themselves.

Thus, ethics plays a fundamental role in shaping the moral compass of individuals and organizations, making it the correct choice in this context.