B.) Caste System is the correct answer
Although it was unsuccessful, the Crusades introduced Europeans to the luxury of the Muslim civilization. When the Crusaders brought home silks, porcelain, spices and other goods, demand for these things in Europe began to grow, especially as the emerging bourgeois class of Europeans became a market for these luxury goods.
When King Menes united the kingdoms of Upper and Lower Egypt by establishing a succession of rulers from the same family, he founded the first Egyptian empire. because he united the two kingdoms of the same place or region.
I don’t know the answer sorry :/
