This would be called a trade-of B.
The reason why this is correct is because if you can only build one thing as a company and you decide that building war equipment is more important to you, then you're doing a trade-off between building butter-making machines and army tanks.
Answer:
The southern colonies had very rich soil and flat ground, making it extremely easy to farm and grow crops. In the North the soul was thin and rocky, so they had to rely on the coast more than farming. The North made money through fishing, ship building, and other various non agricultural industries.
Explanation:
To my mind the correct option is C. European, Asian, and African plants became a part of the American environment.
The Columbian exchange, also called the Columbian interchange, a name tha received for Christopher Columbus, was the widespread transfer of plants, animals, culture, human populations, technology, and ideas between the Americas, West Africa, and the Old World in the 15th and 16th centuries.
