ANSWER: Martin Luther. Good luck
The essence of open range was the free grazing of cattle on millions of unfenced acres of public land. It was possible to become wealthy raising cattle without owning any acreage. Although most ranchers owned a base operation, some owned millions of acres. America's open range started with the Civil War [1861-1865].
Reconstruction comprised three major initiatives: restoration of the Union, transformation of southern society, and portrayal of progressive legislation favoring the rights of freed slaves. President Abraham Lincoln’s Proclamation of Amnesty and Reconstruction—give out in 1863, two years before the war even ended—plotted out the first of these initiatives, his Ten-Percent Plan.
B is the most accurate for this question! :D