Answer: Act 3, Scene 1
Alone at Macbeth's court, Banquo voices his suspicions that Macbeth has killed Duncan in order to fulfill the witches' prophesies. He muses that perhaps the witches' vision for his own future will also be realized, but pushes the thought from his mind. Macbeth and Lady Macbeth enter to the fanfare of trumpets, along with Lennox and Ross. Macbeth announces that he will hold a banquet in the evening and that Banquo will be honored as chief guest. Banquo states that he must ride in the afternoon but will return for the banquet. Macbeth tells him that Malcolm and Donalbain will not confess to killing their father. After confirming that Fleance will accompany Banquo on his trip, Macbeth wishes Banquo a safe ride.
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