Answer:
A major result of migration, trade, and warfare was A. cultural diffusion.
Explanation:
Though trade and migration, different cultures and people interacted and coexisted, which resulted in the circulation of cultural artefacts, ideas and values, as seen in the Meditarranean Sea as a cultural and trade highway in Ancient Greece. On the other hand, warfare was also a mechanism for cultural diffusion in which the victors imposed their cultures over the losers.
In conclusion, migration, trade and warfare help spreading cultural beliefs, artefacts and social activities from one community or group of people to another.
