Along with China, what other two empires are considered the anchors of the postclassical world?
ARome and Greece
BRome and the Carolingian Empire
CByzantium and the Abbasid Empire
DThe Umayyad Empire and the Abbasid Empire
ARome and Greece
BRome and the Carolingian Empire
CByzantium and the Abbasid Empire
DThe Umayyad Empire and the Abbasid Empire