Concept:An epilogue is a concluding section that comes after the main story, often optional, providing closure or updates on characters.Explanation:The word 'epilogue' refers to a short section at the end of a book, play, or film that serves to wrap up the story. It is not a mandatory part; the author may include it to show what happens to the characters after the main events or to add final thoughts. This is different from a prologue (introduction) or a chapter within the main story. Option B correctly describes it as an optional final chapter of the story.Answer:Option B: An optional final chapter of the story.