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The correct answer of this question is option A. The dark side revealed by Manifest Destiny is the American imperialism. It is the belief that American settles are destined to expand across North America. This resulted to displacement of Native Americans and war with Mexico.
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Answer:
In the speech called the State of the Union Address
The address fulfills the requirement in Article II, Section 3 of the U.S. Constitution for the President to periodically "give to the Congress Information of the State of the Union, and recommend to their Consideration such measures as he shall judge necessary and expedient."
The term "Roaring '20s" refers to the decade of the 1920s in the United States, which was a time of much economic growth, as well as much social and cultural change.
In the 1920s, cities grew rapidly and industry was growing immensely in the United States. Jazz and other forms of entertainiment (like radio) were expanding and reaching new audiences. Women were becoming more involved in public life. The stock market was a place of much speculation and investment -- too much, as it turned out. The stock market crashed in 1929. America had thought it was in great times during the Roaring '20s. But then everything came crashing down and minds and hearts were depressed, as the country entered into the next decade and an economic tragedy known as the Great Depression.
People in the south used slaves because their economy was focussed on things like cash crops (tobacco, cotton, etc.) These crops required a lot of work so farmers and plantation owners could not do it by themselves. So by using enslave persons they could harvest more crops, sell more, make more money, and in return boost the southern economy.
I believe that would be the fault line.
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