Yes this is correct
The 15th Amendment to the U.S. Constitution granted African American men the right to vote by declaring that the "right of citizens of the United States to vote shall not be denied or abridged by the United States or by any state on account of race, color, or previous condition of servitude."
The manor system was important because people lived on feudal ground owned by rich land owners. Those people were tightly connected to the catholic church and they all swore their allegiance to the pope. The people were all religious and they worked on the land and could keep a part of what they produced but they had to give a part to the manor owner. The owner would provide protection in return.
D. Because the U.S. helped out.
His rise to power was the result of many factors: the impact of the depression, the weakness of Weimar democracy and the strengths of the Nazi party.