D. Federalists were willing to agree to the Bill of Rights as a compromise to gain the support of reluctant states in the ratification of the Constitution.
The inclusion of a Bill of Rights was a key demand of the Anti-Federalists during the ratification process of the United States Constitution. The Anti-Federalists argued that without a Bill of Rights explicitly protecting individual liberties, the new federal government would have too much power and could potentially infringe upon the rights of the people. The Federalists, who supported the Constitution, initially did not see the need for a Bill of Rights. However, they recognized the importance of gaining the support of the Anti-Federalists and securing the ratification of the Constitution. As a result, they agreed to add a Bill of Rights as a compromise. The Bill of Rights, which consists of the first ten amendments to the Constitution, was added shortly after the Constitution was ratified. This compromise helped to alleviate the concerns of the Anti-Federalists and ensure the broader support necessary for the Constitution's adoption.