What is defined as the set of moral principles that determines right and wrong behavior?

The correct choice, defined as the set of moral principles that determines right and wrong behavior, is ethics. Ethics is a philosophical discipline that involves systematizing, defending, and recommending concepts of right and wrong conduct. It goes beyond mere compliance with law to address what is considered morally acceptable or unacceptable in various contexts.

In contrast, law refers to rules and regulations established by authorities that must be followed, which can sometimes diverge from what is deemed ethical. Standards, while they can include ethical considerations, are more about established benchmarks for behavior or performance rather than a framework for moral judgment. Morality typically refers to the beliefs and values held by individuals or societies regarding right and wrong but does not encompass the systematic study and application of those beliefs, which is the realm of ethics. Thus, ethics serves as a comprehensive framework that guides behavior in a more principled way.