Answer:
Both agriculture and transportation has a great role in the building of colonial economy.
Explanation:
In colonial economic system, cash crops are grown which provides employment to the people living in these colonies. These cash crops are transported to other areas to earn money. Transportation is also have a great importance in these colonial system due to transportation of goods from one place to another.
I would believe the United States sponsored the contras in Nicaragua because they hoped they would Sandinistas.
If I'm wrong, please feel free to yell at me.