Macbeth becomes greedy and overly ambitious as a result of the witches' prophecy, that Macbeth will one day be king. Option B is correct.
Macbeth is a progressive character in the play. As the plot proceeds his few good qualities disappear, while the evil become more and more developed. He was characterized by his bravery, kindness as well as ambtion, and tyranny.
Macbeth receives a prophecy from a trio of witches that one day he will become King of Scotland.