A. didn't have a bill of rights that would guarantee basic freedoms.
Anti-Federalists opposed ratification of the Constitution without a guarantee of protection of natural rights.
Federalists believed the Constitution implied the protection of rights and the creation of a checks and balance system would protect individuals. To guarantee ratification of the Constitution, Federalists agreed to a set of ten amendments to be added to the Constitution that would specifically guarantee the rights of the individual and give power to the states. Anti-Federalists agreed to ratify the Constitution in exchange for the Bill of Rights.