I'd say that the technique of satire used by Wilde in The Importance of Being Earnest is b. ridiculously exaggerating the importance people such as Gwendolen place on a name.
She knows that she wants to marry a man named Ernest, because that is a good and decent name - when she finds out that Ernest's name is actually Jack, which is a common and mundane name, she sort of changes her opinion about him based on such an irrelevant fact.
Perseus accidentally killed his grandfather, Acrisius in a discus throwing contest and fulfills the Oracle prophecy.
