D, it’s purpose was to help the nation recover from the horrible things that the Great Depression caused
13 states (the question is not complete?)
The "Out of Arfica" theory proposes that the humans originated in Africa and spread from there to other continents. The main parts of human evolution would then have happened in Africa according to this theory. More specific theories propose East Africa for this .
The answer is African Americans because they are likely to engage to activities that will lead them to have a stroke and by that, the incidence of stroke is high among them. Stroke occurs when the brain lacks oxygen and nutrients that causes an individual's brain cells to die.