The correct answer is C) To inform readers about the harsh institution of slavery.
The best explanation for Douglass' purpose in writing his Narrative of the Life of Frederick Douglass is to inform readers about the harsh institution of slavery.
Frederick Douglass was a slave that wrote his memoirs called "Narrative of the Life of Frederick Douglass," in 1845. His story makes a detailed description of the events of his life as a slave. When he published the book he had to leave the United States and traveled to England, fearing their formers owners wanted to capture him. Douglass wanted the American people to know about the harsh institution of slavery, and the cruelty of living as a slave. HIs book became one of the most important pieces of abolitionist literature in the United States.