C great britain im pretty sure hope this helps
The slave trade affected negatively the African economy due to the fact that African people were forced to go to the U.S, that left less strong people to help the economy stay better. The remaining people had to work even harder so that the money could retain its value.
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Hoover's relations with latin America differ from those of his predecessors because he supported much more friendly relations with Latin America, making it easier the 'good neighbor' policy of his successor, unlike his predecessors who seem to had bad relationship with their neighbor<span />
The answer is A. Interact with water supplies