Which event contributed the most to the idea of Manifest Destiny? A. the Mexican American War

B. the North Carolina gold rush

C. the War of 1812

D. the Louisiana Purchase

B

the north carolina gold rush

I Think

D. The Louisiana Purchase.

Explanation:

The idea of Manifest Destiny pushed for the idea that the US was destined to expand westward and to claim lands that make up what is now known as the mainland of the United States of America.

D. The Louisiana Purchase contributed to the idea of Manifest Destiny, as the United States bought France's territorial claim in the New World, which technically meant that the US was free to expand westwards into their legally owned territory.

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d)to gain support for the independence movement.

hope this : )

i would think the answer is between b and d i would say d sorry if wrong