What is one of the main purposes of a constitution?

The primary purpose of a constitution is to provide a framework for governance by establishing the structure, functions, and limits of government. By doing so, it offers legitimacy to the authority of the government in exercising power and making laws. A constitution outlines the duties and powers of various government entities, thereby ensuring that these powers are executed in an organized manner. Furthermore, it often enshrines the rights of citizens, promoting a sense of order and stability within society. This foundational document serves to protect against abuses of power by restraining governmental authority and clarifying the relationship between the state and its citizens, which is essential for a functioning democracy. In contrast, the other options do not align with the fundamental purposes of a constitution.