Question

Which caused the United States to declare war on Mexico in 1846?

A.
speeches in favor of war from Henry Clay and others in Congress

B.
the belief that America had a God-given right to expand its territory

C.
disgust with Mexico's system of slave-based agriculture

D.
the kidnapping of American civilians by the Mexican army

Answer 1

B.

the belief that America had a God-given right to expand its territory

Step-by-step explanation:

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Answer 2

B. the reason is "manifest destiny" which meant that Americans thought they had the right to the land