What makes oedipus a tragic hero? why does he blind himself? roles do the choruses assume? what makes him a tragic hero? different types of irony in oedipus rex the play

In his Poetics, Aristotle outlined the ingredients necessary for a good tragedy, and he based his formula on what he considered to be the perfect tragedy, Sophocles's Oedipus the King. According to Aristotle, a tragedy must be an imitation of life in the form of a serious story that is complete in itself; in other words, the story must be realistic and narrow in focus. A good tragedy will evoke pity and fear in its viewers, causing the viewers to experience a feeling of catharsis. Catharsis, in Greek, means "purgation" or "purification"; running through the gamut of these strong emotions will leave viewers feeling elated, in the same way we often claim that "a good cry" will make one feel better. 

it is the : d because is true