I believe it's "Atlantic slave trade", based on the key words of the quote. Definitely not B or C, it could be A however the quote doesn't really fit it.
Britain and France never officially helped or recognized the Confederacy. Reason was the institution of slavery, which was illegal in Britain and France.
Answer:
'Hitler needed the vote of the Centre Party and Conservatives in the Reichstag in order to obtain power. He called on Reichstag members to vote for the Enabling Act on 24 March 1933. Hitler was granted plenary powers "temporarily" by the passage of the Act.'
----taken from https://en.wikipedia.org › wiki › Adolf_Hitler's_rise_to_power
Based on these passages, the main difference between the teachings of W.F.B. DuBois and Booker T. Washington was that Washington promoted self reliance and gradual advancement of the black people, and DuBois supports radical change. The correct option among all the options that are given in the question is the third option.
1991, when sovet union broke up, which is the sign of the end of the cold war.