What important evolutionary advances in the social sphere do they depict? What is their significance?

A. Use of fire (protection from cold and wild animals, the ability to survive in areas with a cold climate, the formation of a “home”).
B. Collective hunting and collective farming (gathering food together contributed to the development of social ties, speech, thinking; agriculture formed a sedentary lifestyle).
C. The emergence of art (images of animals, scenes of hunting and everyday life, making sculptural images speaks of a new stage of development, when a person tried to comprehend what surrounded him and pass on his experience to descendants).