The egyptian and kush civilizations shared similar methods and shipbuilding, styles of art and architecture, and religeuos beliefs

The Egyptian and Kush civilizations shared similar: styles of art and architecture
The most architectural building in Egypt is undoubtedly the Pyramid and the Spynx. In the Kingdom of Kush, many archeologist found the residual architecture that prove the existense of Nubian Pyramids, which are also used for burial purpose of the Kush' nobles.

Ithink it would be choice b (county). hope this you!