Final answer:
The framers created a system of separation of powers to prevent any one branch of government from becoming too powerful.
Step-by-step explanation:
The correct answer is A) Separation of powers. The framers of the Constitution created a system of separation of powers to prevent any one branch of government from becoming too powerful. They divided the national government into three separate branches: legislative, executive, and judicial. Each branch was given specific responsibilities and the authority to check the other branches, ensuring a balance of power.