Which of the following was a feature of open-range ranching?

A) The rounding up of wild cattle roaming free on the range
B) The slaughtering and butchering of cattle on the range
C) The purchase of thousands of acres of land for grazing
D) The grazing of cattle on public land

Open-range ranching involved the grazing of cattle on public land, which was not owned by the ranchers. This allowed them to access large areas of land without having to purchase it themselves. The other choices (A, B, and C) were not necessarily specific to open-range ranching and could occur in other types of ranching operations.