What factor(s) contributed to the vast rise of the Roman Empire and its many urban settlements? (1 point) Responses the organization of feudal cities into a network of marketplaces for consumer and public services the organization of feudal cities into a network of marketplaces for consumer and public services centralized political power, improved infrastructure, and diverse consumer and public services centralized political power, improved infrastructure, and diverse consumer and public services reliance on independent city-states for direction in politics, philosophy, and science reliance on independent city-states for direction in politics, philosophy, and science central location in the Fertile Crescent and a primary focus on trade with China central location in the Fertile Crescent and a primary focus on trade with China consolidation of smaller agricultural holdings into large independent agri-estates consolidation of smaller agricultural holdings into large independent agri-estates