Answer: C) an explanation of the natural world.
Explanation: A myth is a traditional story that explains a historical event or a natural or social phenomenon, it is also used to explain customs. In the given excerpt from the myths and legends of ancient greece and rome by E. M. Berens we can see the explanation of the existence of the sun and the moon and also the origin of the dew (elements of the natural world), all of this is explained by using the gods Helios, Selene and Herse.
Face the music means to face the troubles the world brings. To face a disagreement or something unpleasant.
Most important in astronomical history--the one whose orbit has been.