I believe answer is c because from what i remembered this is what cause the cold war.
Answer:
Depending on new crops and change in trade stucture.
Explanation:
The Columbian Exchange introduced new agricultural products, included tomatoes, pumpkin, potatoes, chillies, cocoa, maize, peanuts, and beans in Europe. The arrival of many crops and plants in Europe had nutrition with calories and flavour, which led to an increase in life expectancy. The increase in trade and goods led to the formation of an economic shift from feudalism to capitalism. The merchants class began to flourish through trade. People in Europe became dependent on colonial goods including sugar, tobacco, and many others.
Answer:
They had acquired resistance to many diseases
