I'm taking it that this is a question that is related to library science? If so, then the information that it should document should be the author of the book that is presented, the title of the work, and who published such work. This is to make convenient tracking or retrieval of the document wished to obtain.
The correct answer is a short story.
Your options are tragedy, short story, lyric poem, and expository essay. The answer cannot be tragedy because tragedy relies of dialogues and emotions rather than narration. It cannot be a lyric poem because it is solely about emotions. An expository essay is just telling you how to do something - or how something is achieved.
We are left with a short story - it uses narration to tell us what is going on and it describes people and their experiences.
Answer:
It allows the author to include powerful details that might not have fit into the main chronological narrative.
Explanation:
I took the test and it was correct! Hope this helps!
