The aspect of fiction that realist writers use to advance the plot of their story would be : The complexity of the characters.
Realist writers tend to advanced the plot by somehow explaining the motives that influence each characters, creating a tension and plot based on our human understanding and empathy
A lot of people lost their jobs
They were mostly brought by slaves who were taken to the Americas. They talked to their young ones because there was a high degree of oral tradition, and they would teach them things about life based on the folktales from West Africa, and it eventually became an integral part of the African-American identity in the United States.