The correct answer is B) Plains.
The Native American group that lived as nomads following the buffalo herds was the Plains.
These Native American Indian tribes such as the Lakota, Comanche or Cheyenne, followed the Buffalo herds ti hunt the animals and feed their families. They also used the skin of the Buffalo to cover their bodies and protect them from the harsh winter conditions. They were not cruel with the animals because they saw Buffalo as the animal that let the Indians live with its meat and skin. So Indians honored Buffaloes and other animals they hunt.
