Which phrase best completes the diagram? Effect
Cause
Moorish conquest of
Iberian Peninsula
O A Advances in math and sciences
O B. Spread of Christianity
O C. Creation of democracy
O D. Formation of the Byzantine Empire

One of the things that allowed native americans in mexico to settle cities larger than those in areas to the north was "b. the development of cities that were built by an earlier civilizations," since mexico had been the home of some of the world's most advanced civilizations before the columbian invasion