Which power does the constitution specifically deny to the federal government

B. The power to ratify changes to the Constitution

Explanation:

The Founding Fathers designed the US Constitution to be hard to amend. They did so because they wanted to preserve the political deals that made the US Constitution possible.

Article 5 of the US Constitution says that an amendment can be proposed either by 2/3 majority in the House and the Senate or by a convention called into being by Congress.

After that, the amendment has to be ratified by 3/4 of the states, this means that the federal government does not have the power to ratify any amendment, the states have to.

The federal government is denied the following:

Permit slavery (13th Amendment)

Deny citizens the right to vote due to race, color, or previous servitude (15th Amendment)

Deny citizens the right to vote because of gender (19th Amendment)