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Slaves were brought over from Africa through the _AFRICAN_ _SLAVE_ _TRADE_. Slaves were brought for cash _CROPS_, such as cotton, sugar, and tobacco, which were traded in England for manufactured goods, such as run and guns. The _ENFORCED LABOR_ of slaves made white Southern _PLANTATION_ owners a lot of money. Many slave owners also believed in _RACIAL INEQUALITY_ and thought slaves were inferior to whites because of the color of their skin. They used this reasoning to justify their harsh treatment of African Americans. Although there were many in the South who economically benefitted from slavery, Fredrick Douglass was a famous Abolitionist who fought for the end of slavery. A former slave himself, he witnessed the horrors of the _SYSTEM_ firsthand.

Explanation:

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the answer should be b.

explanation:

it should be b because she researched before writing so it would be in past tense. "the author researches her subject before she had written the first draft.