What were the problems did slavery create for the United States in the years directly preceding the Civil War?

the answer to this question is the third option. hope this

"a shortage of traditional labor created new opportunities in the workplace. a major cause of the internment of japanese americans during world war ii was. racial prejudice. in the early 1940's, the "destroyers-for-military-bases deal" with great britain and the lend-lease act were evidence that the united states."

he was able to speed up production of the processing of seeds

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