A) judicial review INCORRECT Judicial review is the power of the courts to declare laws and executive actions unconstitutional. While it is a check on the other branches, it is not the overarching principle that prevents any one branch from becoming too powerful. Judicial review is a specific tool used by the judicial branch, not a system that applies to all branches equally. The principle described in the question is broader and encompasses multiple checks among all branches.
B) implied powers INCORRECT Implied powers are powers not explicitly stated in the Constitution but are reasonably inferred from the necessary and proper clause. This concept allows Congress to make laws that are necessary to carry out its enumerated powers. It does not relate to the balance of power among branches. Implied powers are about the scope of legislative authority, not about preventing one branch from dominating another.
C) equal protection INCORRECT Equal protection is a legal principle from the Fourteenth Amendment that requires the government to treat all individuals equally under the law. It is a fundamental right that ensures fairness and non-discrimination, but it does not address the distribution of power among the branches of government. Equal protection is about individual rights, not about the structure of government.
D) checks and balances CORRECT Checks and balances is the constitutional principle that ensures no single branch of government becomes too powerful. It is a system of overlapping powers and responsibilities that allows each branch to limit the actions of the others. For example, the President can veto legislation, Congress can override the veto, and the Supreme Court can declare laws unconstitutional. This principle is fundamental to the separation of powers and is essential for maintaining a balanced and democratic government.
