Which region is associated with crops such as corn and potatoes, as well as the introduction of horses and the spread of syphilis?

• A. Africa
• B. Asia
• C. Americas
• D. Europe

Answer: (C)

The question centers on the impact of the Columbian Exchange—how the contact between the Americas and other regions brought crops, animals, and diseases across continents. Corn and potatoes originated in the Americas and later spread around the world, transforming diets and agriculture. Horses were reintroduced to the Americas by Europeans, altering transportation and life there. Syphilis is a disease that many historians link to the era of widespread contact between the continents, moving from the Americas to Europe. Taken together, these associations point to the Americas as the region in question.