The correct answer is B) The narrative showed how the interaction among the peoples of Africa and Europe impacted the course of slavery.
The important point that this part of Olaudah Equiano's narrative shows about slavery is "The narrative showed how the interaction among the peoples of Africa and Europe impacted the course of slavery."
This reflects the way slaves were treated during those horrible years of slavery and the Slave Triangle that traded African slaves to the Americas. In 1789, Olaudah Equiano wrote the book "The Interesting Narrative of the Life of Olaudah Equiano, or Gustavus Vassa, the African," which describes his memories of being treated as a slave since he was 11 years old.