Answer:
you can go through this link -Africa: Independence Movements - Geography
Explanation:
Attracted by the promise of wealth from gold, diamonds, exotic hardwoods, and other natural riches, European nations claimed large portions of Africa for their colonial empires. Besides seizing the land of Africans, the Europeans also destroyed many of their freedoms and their institutions of government.
geography.name › independence-m...
To prevent the spread of communism to the south Vietnam
Manifest Destiny basically mean, "EVERYONE MOVE TO THE WEST NOW!" But with no slaves, how would they create farms to maintain themselves? Easy: expand slavery. However, this was battled against by several sources to create the Compromise of 1850. The compromise delayed the Civil War, despite politicians knowing it will eventually happen. It bought them time-- that was important! Other new states like Nebraska and Kansas were allowed to allow slavery or not. This eventually grew to where the North had no slavery and the South did, which lead to the Civil War.
The answer is B because the text mentioned the author