The answer is B.
The Great Migration was the movement of six million African Americans from the Southern U.S. to the North. As you probably know, back in the 1900's, segregation of African Americans was on the rise. At the time, the North was not involved in this segregation, so African Americans migrated to the Northern states to escape discrimination.
Native American gambling comprises casinos, bingo halls, and other gambling operations on Indian reservations or other tribal land. Since these areas have tribal sovereignty, states have limited ability to forbid gambling there, as codified by the Indian Gaming Regulatory Act of 1988. In 2011 there ended up being 460 gambling operations run by 240 tribes with a total annual revenue of $27 billion
True I believe sorry if wrong
The main reason why the twenties are sometimes called an "age of prosperity", especially in the United States, is that "<span>A.Incomes throughout the United States grew and the middle class held most of the wealth," due mostly to speculation in the stock market. </span>
The answer to this question is basically a famous quote from Hobbes.
He said, “the natural state mans’s life is solitary,poor,nasty,brutish and short. Hope this helps!!!