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.
Benjamin Franklin thought that it was hard for people to compromise because most men, having come from different religions, thought that they possessed of all truth, and that others beliefs would be different from their own. He believed that people found it hard to compromise because it was difficult for them to accept different types of perspectives.
D) the United State's support of Israel in the Yom Kippur War
His election showed that Americans wanted a more democratic politics where
common people were free to express their opinions.
Hope this helps!