Why did many White Americans see Manifest Destiny as the nation's right?

A. James K. Polk was an unpopular president and he opposed the concept.
B. No other nations had interests in North America, so there were few obstacles.
C. They wanted to find a way to coexist peacefully with Indigenous peoples.
D. Many people wanted the United States to expand across the continent.

Manifest Destiny was a belief that justified American expansion across the continent in the 1840s, asserting the nation's right and duty to spread democratic institutions and Americanize the inhabitants of North America.

Explanation:

Manifest Destiny was a belief that white Americans held in the 1840s, asserting that the United States had the right and duty to expand across the continent, spreading democratic institutions and Americanizing the inhabitants of North America. This notion was associated with the idea of expansionism and was justified as inevitable and divinely ordained.

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