Trade barriers come in many forms. Quota is one. This is when a country sets a limit to the imported products. This is done for a number of reasons. One is because the government of the importing country wants to protect its domestic manufacturers. Other barriers or limitations are added costs such as tariffs, duties, and taxes.
15th to the 17th centuries were the Age of Exploration
Because a lot of people were not subject to it and so they werent taxed
I think it is (C) Most Mexicans remained poor while Americans invested in Mexico's unfair economy
