Answer:
A. A myth.
Explanation:
A lot of poets —dealers in words, images, and feelings— often recur to mythology in order to explore familiar themes in a more profound and robust sense, drawing on the significance and meaning of certain myths to exacerbate the sense of the familiar theme they wish to elaborate further. This is an interesting literary resource since it can bring depth to a given theme, distancing it from clichés and stereotypes.