Which of the following defines ethics?

The correct answer, which defines ethics, is a system of moral principles. Ethics concerns the principles that govern a person's or group's behavior, determining what is right or wrong, just or unjust. This set of moral values influences decisions and actions, guiding individuals and organizations in making choices that reflect their values and the ethical standards of society.

This definition emphasizes the foundational role ethics plays in various fields, including business, law, and personal conduct. While it can inform business regulations, strategic planning, and project management, those aspects are applications of ethical principles rather than the definition itself. Therefore, understanding ethics as a system of moral principles helps establish a clear context for evaluating conduct and making decisions within any domain.