Which of the best explains why trade among the colonies flourished? A.) the different regions specialized in different crops B.) the colonies had developed large fleets of trading ships C.) existing trade routes were well-maintained by Native Americans D.) colonies were founded with specific trade agreements in place

Commercial agriculture consists of raising food for trade and profit, while subsistence agriculture focuses on -- a. providing the basic needs of the farmer's family b. providing the basic needs of the neighboring communities c. creating more arable land for future use d. obtaining subsidies from governments and corporations