What is a key purpose of the US Constitution's articles?

The key purpose of the articles of the US Constitution is to define the structure of the government. This includes establishing the three branches of government: the Legislative, Executive, and Judicial branches. Each branch has its own functions, powers, and responsibilities outlined within the articles. For instance, Article I details the powers of Congress, Article II outlines the powers of the President, and Article III describes the role of the Supreme Court. This structural framework is essential because it establishes a system of checks and balances to prevent any one branch from becoming too powerful, ensuring the government operates effectively and within the rule of law.

The other answer choices represent important aspects of the Constitution, but they do not pertain specifically to the primary role of the articles. While individual rights are addressed in the Bill of Rights, international treaties are covered under the powers of the President and the Senate, and election procedures are largely governed by laws created at the state and federal levels, not explicitly defined in the articles themselves. Therefore, the defining of government structure is the central organizational purpose entrusted to the articles of the Constitution.