Conquest united all of the following cultures EXCEPT
(A) Mongols and Ottoman Turks.
(B) nomadic Berbers from North Africa and the people of Spain.
(C) Ottoman Turks and Byzantines.
(D) Aryans and Indus valley peoples.
(E) Spaniards and Aztecs.
Conquest united all of the following cultures except "(A) Mongols and Ottoman Turks". Although there was certainly some mixing, these two people stayed largely separate.