Because the only way (back then) to process and make sugar farms was through manual labor. Since the Americans didn't want to put effort onto their own sugar farms, Africans were forced to do the labor part for them.
I believe it is B)
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<span>The United States and it's government changed in the late 1700s and early 1800s was slavery of people in the North and South. The North was industrialized by getting industries and factories and urban areas. The South was agricultural and rural because of land and farms</span>
Cause : bring pesticides into action
Affect : great wealth and bountiful harvest
William Henry Harrison became the ninth president of the United States in 1841.