Your answer would be C). A poem that tells a story.
The reason why this would be your answer is because you could get some clues from the word "narrative." The word narrative means someone is directing the book, it's just like the term "He/She is narrating the book." And what the narrator does is tell the reader what's going on in the book, the narrator tells the story of the book.
The rise of power can cause problems if ghana rises so they would cause a war if umayyad did they would cause a system mathematical droubt but if this isn't the answer and this is a multiple choice answers please post them