Which of the following is NOT a branch of government?

The administrative branch is not considered a branch of government in the context of the primary organizational structure that defines governmental power. The three main branches of government in the United States, including Arizona, are the judicial, executive, and legislative branches. Each of these branches serves distinct functions: the legislative branch is responsible for making laws, the executive branch enforces laws, and the judicial branch interprets laws and administers justice.

While there may be administrative functions involved in each branch, such as various agencies that operate under the executive branch, these do not constitute a separate, foundational branch of government as delineated by the Constitution. Recognizing the administrative aspect as distinct from the primary branches clarifies the structure of governance and the separation of powers, which is fundamental to preventing the concentration of power and ensuring checks and balances.