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:
Excellent travail, continuez votre bon travail ...... écrivez-vous vraiment cela seul! ??!?!?! Tu devrais sérieusement devenir écrivain !!! ...
This type of creation story or myth could be a good example of what is called "Earth-diver". As the name suggests, this kind of creation myth involves a vast ocean and almost nothing else. Someone, a god, dives into the ocean to retrieve something small that would expand exponentially to fill/complete the rest of the world. The sample story adheres almost completely to the "Earth-diver" except for the fact that the "diver" had not been a deity.