if this a story your talking about?
During puberty, adolescents' thoughts center on themselves.
Adolescents are usually quite selfish because they think only about themselves and what is best for them. Before adolescents, their thoughts centered either on their friends or family, but this changes during adolescent years. However, after they go through adolescence, the center of their attention will also shift.
They imported slaves as a part of the Transatlantic Slave Trade. They used a system of triangluar trade to do so.
Answer: D) To freely trade with the bloc's other member countries.
Explanation:
Free trade means there aren't any tariffs between any two countries. So any two countries can sell whatever goods they want without any extra taxes, fees, etc added on.
Choices A through C all describe situations in which trade is reduced/restricted between any two countries. This makes a nation more independent, but the drawback is that they aren't connected to the global stage as much.
Theoretically in an economic sense, a country is better off being connected more globally because it allows for specialization to happen and it lowers costs. Of course on a practical realistic level, things are more complicated but this is the general idea at least.