Which statement best describes the African slave trade? * 1.The Trans-African trade involved guns, gold, and ivory, but never slaves.
2.Slavery was unknown to Africans until Europeans arrived and started capturing and selling the native populations.
3.Africans never traded with Europeans but they did practice slavery inside their own countries.
4.Slavery was quite uncommon in Sub-Saharan Africa and it was only known in North Africa because it was closer to Europe.
5.Slavery was known to Africans and practiced all over the continent, but the Europeans raised the demand for slaves, thus intensifying the practice.