How does macbeth feel about the witches prediction?
a. he is excited, but a part of him is afraid of what he will have to do to make the prediction come true.

b. he is overcome with ambition and immediately starts plotting with lady macbeth to kill king duncan.

In the play Antigone, Teiresias is a blind mind who nevertheless has great insight towards the future. He is a prophet, and he gives us several signs of his power even before he tells us his prophecy.

One of the reasons why we know that he is indeed a prophet is from the interpretations that he makes of signs. The signs tell him that the gods do not approve of Creon's behaviour. He tells us that he has seen the "carrion meat" of birds and dogs, "torn from the flesh of Oedipus' poor son." The gods do not  seem to take the offerings from the Thebans. Moreover, the bird's throats are full with the blood of Polyneices.

All of these signs show that the world is not operating as it should be. We learn that the gods do no approve of Creon's decision to not bury Polyneices. We also learn that the gods believe that Creon has violated the law of the living and the dead. Because of this, Teiresias states, the gods decide that someone from Creon's family will be taken too.