Answer:B
Explanation:
Christopher Columbus introduced horses, sugar plants, and disease to the New World, while facilitating the introduction of New World commodities like sugar, tobacco, chocolate, and potatoes to the Old World. The process by which commodities, people, and diseases crossed the Atlantic is known as the Columbian Exchange.
Gold and copper i believe
He ruled most of Western Europe from 768-814. And in 800 he was crowned emperor of the romans
The purpose is to protects <span />business by limiting the larger company's ability to command discriminatory through its purchasing powers