in classical tragedies what causes destruction of the hero ?

the actions of the villain

the hero’s nobility

the hero’s personal defect in an area

the love interest

in classical tragedies, the destruction of the hero is typically caused by the hero's personal flaw or tragic flaw, known as "hamartia." This flaw could be excessive pride (hubris), jealousy, ambition, or any other character trait that leads to the hero's downfall. The actions of the villain, the hero's nobility, and the love interest may all play a role in the tragedy, but ultimately it is the hero's own personal defect that leads to their destruction.