C. People and companies in Brazil are producing more goods and services. is your best answer.
For people of Brazil to spend more money (Option A), they must have a steady supply of money. This is ensured through producing of goods and services that help circulate the economy. If you are importing more goods and services from other countries, it usually means that your country cannot produce sufficient amounts (if any at all), and is a loss of money, leading to a drop of economy. D is obviously not right, for to have a growing economy, you have to be able to make a profit overseas.
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