Answer:
In this scene, Macduff confronts Macbeth inside the castle. Macbeth taunts Macduff but Macduff just wants to fight. Macbeth claims that he cannot be defeated because of the witches' prophecy but Macduff then reveals that he was born by Caesarean birth. Macbeth vows to fight on and the two men battle.
It turns out the "none of woman born" prophecy was extremely technical about the mechanics of childbirth. The prophecy, in the end, seems more like an empty taunt than a promise of a special destiny, as Macbeth turns out to be as mortal as anyone. Having based crucial decisions on the witches' predictions, he finds that all their prophesies were misleading and that he might have been better off had he never encountered the "weird sisters."
Even when Macbeth has run out of protective prophecies and knows he is likely beaten, he refuses to yield to Macduff. He is, in some senses, the same relentless opponent he showed himself to be in the reports from Act I, but now his efforts are in the service of nothing, as his "fruitless crown" is on the point of being torn from him.
Triumph and sadness mingle as Malcolm and his thanes capture the castle. Malcolm has matured through battle, evolving from a green prince to a seasoned monarch. He is upset that not all their friends have survived. But, observing the heroic code, they all put a brave face on the situation.
The men find comfort in Macduff's war trophy, the gory head of their former friend Macbeth—this dead butcher and cursed usurper. Macduff and the others are heartened as they hail Malcolm, the new and rightful king of Scotland.
Explanation: