Which summarized story is most likely a myth?

A.A handsome young man sits and stares at his own reflection until he starves to death. After he dies, a flower named after him grows where he was sitting.
B.An ugly duckling is teased by the other ducklings. When she grows up, however, the ducklings discover that she is a beautiful swan.
C.A boy lies and tells the village that his flock is being attacked by wolves. When his flock is actually attacked, no one believes him.
D.Two young birds that fight with each other every day over food learn a valuable lesson about friendship, trust, and sacrifice.