Answer:
C
Step-by-step explanation:
Macbeth has become the King and that is true.The thing is that he would have been a rightful king if it had not been for his own killing of the previous king.By causing the Kings murder, Banquo.Macbeth has usurped his place .As he has committed such a crime he will be cursed, hecannot retain his position and will in turn die for the injustice of his acts.