Read this exchange between Creon and Antigone from Scene IV of Antigone.
Antigone: Ah! That voice is like the voice of death!
Creon: I can give you no reason to think you are mistaken.
How does this exchange move the plot forward toward Antigone's death sentence?
O Creon causes Haimon to hate his father.
O Creon changes his mind and shows mercy to Antigone.
O Creon makes Antigone reconsider her own fate.
O Creon gives up his last chance to show mercy to Antigone.