Which of the Following Describes the Role Pastoral Societies Played

Which of the following describes the role pastoral societies played in world history before the Mongol Empire?

A) They preserved the lifestyle of gathering and hunting societies.
B) They spread their polytheistic religions to neighboring civilizations.
C) They created a series of pastoral empires and controlled major trade routes.
D) They introduced new political models that reshaped the states of older civilizations.