It should be A, since before the Spanish came, there were no horses in the America's. With horses, the Indians were able to hunt more efficiently and had a better way of transportation.
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Northerners lost interest in the Reconstruction era because the Northerners got tired of trying to help fix the South's social problems and the Northerners wanted to start working on fixing their own social problems.
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Answer:
The melting-together metaphor was in use by the 1780s. The exact term "melting pot" came into general usage in the United States after it was used as a metaphor describing a fusion of nationalities, cultures and ethnicities in the 1908 play of the same name.
Explanation:
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