Final answer:
The main difference between early Chinese dynasties and civilizations in Mesopotamia and Egypt is in their religious beliefs, as these influenced each society's specific rituals, pantheon of gods, and mythologies.
Step-by-step explanation:
One of the differences between the early Xia and Shang Dynasties of China and early civilizations in Mesopotamia and/or Egypt that is not a similarity is C. Religious beliefs. While all these civilizations had complex structures of belief, the pantheon of gods, the mythologies, rituals, and the role religion played within the society differed considerably. In Mesopotamia and Egypt, religions were polytheistic with a distinct set of gods, afterlife beliefs, and temple practices, while in ancient China, the religious beliefs were centered around ancestral worship, the mandate of heaven, which justified the ruler's authority, and different local deities or spirits.