Narrative exposition is a literary device to introduce background information about the characters, the setting and previous events. Some procedures to display exposition are flashback, dialogues, journals or the characters' thoughts.
In "Cinderella", before the protagonist dances with the Prince, an invitation to the Prince's Ball comes to Cinderella's home. As a result, considering the course of the events, the invitation is part of the circumstances surrounding the background of the story.
When trying to convey the thoughts and feelings of immigrant laborers in the early 20th century, it would be best to read a narrative type of passage, due to the story.
