Answer:
A. Sugarcane
Explanation:
The Columbian Exchange was named after the very popular voyager and explorer, Christopher Columbus. Columbian Exchange is also referred to as the Columbian Interchange and typically involved the widespread movement of commodities, plants, technology, cultures, diseases, people and animals across West Africa, the Atlantic, America and the Old world (Europe, Asia, and Africa) as far back as in the 15th and 16th century.
The transfer of sugarcane as part of the Columbian Exchange had the greatest effect on human migration patterns before 1800 because it was considered to be the main export commodity crops introduced from the Spanish West Indies. Therefore, many nations in Latin America, Asia and America based their economy on sugarcane production.
Hence, it negatively impacted human migration because it stimulated the formation of African trade slaves, used for the cultivation of sugar plantations.
The transfer that serves in 1800 as part of the Columbian Exchange that was considered as greatest effect that is been felt on human migration is :A Sugarcane.
Therefore, option A is correct.
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