Another Commonality Between the Aztec and Inca Capitals of the Fifteenth

Another commonality between the Aztec and Inca capitals of the fifteenth century is:

A) That they were ruled by direct decrees from rulers and elites, and neither had a system of appeal
B) That they were ceremonial centers with little or no economic activity to interfere with religion.
C) That they were among the largest cities of the world.
D) That their monumental architecture followed identical artistic traditions.