How did the development of the Zhou Empire affect the people of China? Select all that apply. A.The growing feudal system prevented internal political conflict and stopped northern invaders from threatening China. B.Increasing warfare under weak rulers persuaded people that the Zhou enjoyed the Mandate of Heaven. C.Population growth from economic prosperity caused Huang River settlers to move to the Chang River area. D.Powerful warlords conquered new territories and wanted peasants to settle and work on them.