Answer:
IV. many Americans favored the idea of Manifest Destiny
Explanation:
People in favor said the reason was that it was the manifest destiny of the US to spread from the Atlantic to the Pacific Ocean.
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The answer is C. increased military activity and government control in Boston
Answer: The Mexican forces would be driven out of the disputed region in Texas by the American troops, who would also secure the borders.
California and New Mexico would be taken for the United States.
The capital of Mexico, Mexico City, would be taken by the American troops.
Explanation: Hope That helps! :)