What are the three functions of the constitution

The Constitution has three main functions. First it creates a national government consisting of a legislative, an executive, and a judicial branch, with a system of checks and balances among the three branches. Second, it divides power between the federal government and the states.

If your answers look like this a) expansion through conquestb) development of a calendar c) development of a written language d) creation of a large road workthen the answer is dhope it