A myth can be defined as a legendary story that concerns a hero or event that is related to deities or demigods; it explains the origins of a practice, rite, or something related to nature. Options A and B fit in this category since Cupid and Psyche narrates the story of how Cupid makes Psyche fall in love with a monster because Cupid's mother Venus was jealous of Psyche. Also, Prometheus and the First People tells the story of how Prometheus is tortured by Zeus because the first one gave humans the fire.
His satire is aimed at the "hypocrisy" of making an adventure appear more glorious than it was. He is trying to say that there is nothing glorious about war, there is only death and suffering, and it is definitely not a pretty sight.
