Answer: Option (C).
Explanation: Proponents of Evolutionary theory is based on the assumption that societies gradually change from simple beginnings into even more complex forms. Evolutionary theory believes that society undergoes a gradual transformation and evolves from simple structure to forms that are more complex. Evolutionary theories are based on the assumption that societies gradually change from simple beginnings into even more complex forms. Evolutionary theory saw change as positive and beneficial. To them the evolutionary process implied that societies would necessarily reach new and higher levels of civilization.