The correct answer is B) It allowed Native Americans to profit from those using the land for grazing.
The Native American acceptance of land ownership promoted the cattle industry in that it allowed Native Americans to profit from those using the land for grazing.
The Native American Indian tribes that inhabited the Indian Territory (modern-day Oklahoma), considered cattle ranching an important activity for sustenance. These tribes were experts in cattle ranching and they did know how to herd. If cattle drivers from white people crossed their territory, the Indians promptly limited grazing activities and confronted or fined ranchers for not moving the herds.
There were many ideas and forces that motivated people to reform American society during the antebellum years. Such as: anti-slavery, social reform movements, and women’s rights movements. They were all key roles in the effort to remake American Society.
I would say A. It would be difficult to find workers for jobs that people didn't desire. Like how minorities pick produce nowadays and you don't hear of white people picking produce.
B. Constitution
...is the answer to your question :)