From a historical point of view, what was Columbus's most important achievement? A. He spread European animals and crops to the Americas and American animals and crops to Europe. B. He established contact between the Americas and the rest of the world. C. He found gold for the rulers of Spain. D. He treated American Indians poorly.

B. He established contact between the Americas and the rest of the world

Explanation:

Christopher Columbus was a great Spanish explorer, being known mainly for having discovered the American continent and having declared these lands as submissive to the Spanish government. He was the first to establish contact between Europe and America, this being his greatest achievement, which brought him much prosperity. Colobus started a system called the colonial exchange, where he took American agricultural products to Europe, which improved all European food habits.

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(e) a major consequence of the election was that several southern states