Which right does the Tenth Amendment reserve?

The Tenth Amendment of the United States Constitution is specifically designed to outline the distribution of power between the federal government and the states. It states that powers not delegated to the federal government by the Constitution, nor prohibited to the states, are reserved to the states respectively, or to the people. This amendment emphasizes the principle of federalism, ensuring that any powers not explicitly granted to the national government remain with the states, thus protecting the autonomy of state governance.

In this context, the other options do not accurately reflect the content of the Tenth Amendment. The rights of the federal government are addressed in Articles I through III of the Constitution and various amendments, but not specifically in the Tenth Amendment. The judiciary's role in interpreting laws is not exclusive to the rights reserved by the Tenth Amendment and neither is it mentioned. Lastly, while freedom of speech is protected under the First Amendment, it does not relate to the powers reserved by the Tenth Amendment. Therefore, the correct answer identifies the rights reserved specifically for the individual states.