What is the main purpose of the Constitution?

The main purpose of the Constitution is to establish the framework of the government and protect individual rights. It serves as the foundational legal document that outlines the structure, powers, and responsibilities of the various branches of government—executive, legislative, and judicial. Additionally, the Constitution is designed to protect the rights of individuals against potential government overreach, ensuring that fundamental liberties such as freedom of speech, religion, and due process are safeguarded. This dual role of organizing government while simultaneously defending personal freedoms is central to the Constitution's significance.

While other choices touch on relevant concepts, they do not encapsulate the primary function of the Constitution as effectively. For instance, outlining the laws of the land is a function that flows from the Constitution, but it is not its main purpose. Similarly, providing a guide for international relations and regulating trade among states are specific aspects or extensions of government function and authority, rather than the overarching intent of the Constitution itself.