Well, it's not the Ku Klux Klan, as that was a large group of people who wanted to have slaves all return to their work, I've never heard of C, and we barely touched on D in school. From what I've learned, however, the Freedmen's Bureau helped former slaves by supplying food, providing education and homes, etc.
Answer:
The Emancipation Proclamation
Explanation:
The cotton gin Was made in 1793 in order to remove seeds from Cotton fiber so the correct answer would be (B)
By the 1700's Austria and Spain were in conflict with each other over territory in Italy.
Hope this helps you! :-)
