More than likely the civil rights act
Though the 15th amendment highlighted race, color and previous condition of servitude, women felt gender should have been included in the amendment. They helped abolitionists gain rights so they felt they should too
The correct answer is D) ratification of the Constitution.
The Anti-Federalists were against the ratification of the Constitution.
Federalists led by Alexander Hamilton were in favor of a strong central government for the United States. However, Anti-federalists, led by Thomas Jefferson, did not support this idea because they thought this form of government would turn into tyranny. That is why they did not support the ratification as it was originally planned. Everything changed when James Madison wrote the Bill of Rights that are the first ten amendments to the United States Constitution and including freedoms and rights of the citizens.
Colonial subjects who choose to cooperate are often given a reward or status not otherwise given under the old rule. This was a common tactic of the British--pull underclasses into the military and/or government rule. By doing this, you get support, it is cost effective as the colony will govern itself, and you lessen the power of the old elite.
The old elite are more likely to react with violence or rejection of the colonial system. They are typically more equipped to fight against the colonial power. Additionally, members of the military, if replaced, may also rebel against the colonial power. Another factor contributing to rebellion, may be the removal of important traditions or religious rites.