The correct answer is A) Ethnicity. Hope this helps.
The Bill of Rights is first ten amendments to the United States Constitution. They proposed to lessen the fears of Anti - Federalists that opposed Constitutional ratification, the amendments insure freedoms, limit the government's power in judicial and other proceedings, and reserve some powers to the states and the public. <span>
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The number one thing that helped spread the belief was the population growth. America need more room for more immigrants.
C. I really don't have an explanation for this, but I know this from a BrainPOP video. Hope I helped! ☺