A) First Amendment INCORRECT The First Amendment protects fundamental freedoms such as religion, speech, press, assembly, and the right to petition the government. It does not address the division of powers between the federal and state governments. Instead, it limits the federal government's ability to restrict individual liberties. While it is a crucial part of the Bill of Rights, it is not the amendment described in the passage about reserved powers.
B) Second Amendment INCORRECT The Second Amendment protects the right to keep and bear arms, which is an individual right. It does not concern the allocation of governmental powers. The passage likely discusses the principle of federalism, which is not related to the Second Amendment. Therefore, this option is incorrect.
C) Ninth Amendment INCORRECT The Ninth Amendment states that the enumeration of certain rights in the Constitution shall not be construed to deny or disparage other rights retained by the people. It addresses the existence of unenumerated rights, not the division of powers between the federal and state governments. While it is similar in structure to the Tenth Amendment, it focuses on individual rights rather than state powers. Thus, it is not the correct answer.
D) Tenth Amendment CORRECT The Tenth Amendment explicitly reserves to the states or the people any powers not delegated to the United States by the Constitution, nor prohibited by it to the states. This amendment is a fundamental expression of federalism, ensuring that the federal government only has those powers granted to it. It has been cited in numerous Supreme Court cases to protect state sovereignty and limit federal overreach. The passage likely describes this principle, making it the correct choice.