The correct answer is D. it tells of the origins of something.
Here we can see how the horse came to be - it was made out of clay and shaped into a horse, and this is why today we have horses, at least according to this myth. Myths have often been created to explain the origin of many things that were usually inexplicable at the time.
<span>The American cinquain has a specific meter.</span>
This line implies that humans, have been created in a sort of synthetic environment. Humans in this case, are now the most intellegent beings on the known universe, they have been monitored, similar to test subjects. These people/ this race, is more intelligent than man, and humans have been in an experiment this whole time.
Hope this helps.