The accurate statement that compares the social structures of Egypt and Mesopotamia is:
Priests and priestess were closer to the pharaoh in ancient Egypt.
In ancient Egypt, priests held a significant position in society, often serving as intermediaries between the gods and the people, and were close to the pharaoh, who was considered a divine figure. In contrast, while priests in Mesopotamia were also important, their relationship with the ruling authority was not as closely aligned as in Egypt.
The other statements are not accurate: enslaved people were typically considered part of the lower class in both cultures, scribes were actually valued members of society in Egypt, and merchants did not hold the same high status as they did in some other ancient cultures.