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What was the Columbian Exchange?
A. only sending food and people from the Old World (Europe) to the New World (Americas)
B. only sending animals and plants from the Old World (Europe) to the New World (Americas)
C. the moving of animals, plants, people, and diseases from the Old World (Europe) to the New World
(Americas) and from the New World to the Old World
C. the moving of animals, plants, people, and diseases from the Old World (Europe) to the New World
(Americas) and from the New World to the Old World