What were the social rolls mesopotamia, egypt, and indus

In the social pyramid of ancient Egypt the pharaoh and those associated with divinity were at the top, and servants and slaves made up the bottom. The Egyptians also elevated some human beings to gods. Their leaders, called pharaohs, were believed to be gods in human form. They had absolute power over their subjects.

i believe the correct answer is option b. most eastern european nations joined nato.

though i could be wrong, option d. the eastern european nations were granted complete independence, would be another choice.

hope this ! : )