The the third one because of the sentence
There were multiple causes for the Greek War of Independence. Nationalism was spreading and the Greeks wanted their own independent government. The Ottomans were suppressing the Greeks because they were the minority so the Greeks wanted a change. They also wanted Christianity.
the surrender of the Roman emperor in 476 c.e. hope this helped
The great migration happened between 1916-1970 and was when 6 million African American were moved out of the Southern United States and to the urban Northwest, Midwest, and west
The settlers believed they were better than the natives and could do whatever they wanted to them they felt entitled to the land and resources and had no problems taking it so basically the settlers thought they could do whatever they wanted and the Indians didn’t take kindly to it