Final answer:
During the eighteenth and early nineteenth centuries, Europeans began selling Africans as slaves in the Americas.
Step-by-step explanation:
The correct answer is B - Europeans began selling Africans as slaves in the Americas. During the eighteenth and early nineteenth centuries, the transatlantic slave trade was a major event involving Europe and Africa. European countries, such as Portugal, Spain, Britain, and France, engaged in the trafficking and sale of African slaves to work on plantations in the Americas. This cruel and exploitative practice had a significant impact on both continents, shaping the history, economy, and social structure of various countries.
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