Final answer:
Banquo's skepticism and questioning nature suggest that he understands the potential evil of the witches, indicating wisdom rather than ambition or involvement in plans of murder.
Step-by-step explanation:
From Banquo's response to the witches' prophecy in Act 1, Scene II, of Macbeth, it can be inferred that A) Banquo is wise enough to understand that the witches represent evil. Banquo questions the truth of the prophecy, suggesting a level of skepticism, as indicated by his lines questioning if the devil can speak true and contemplating whether they have eaten the insane root. He does not show any signs of supporting wrongdoing to make the prophecy come true. Moreover, when Macbeth is alone, he reflects that if chance will have him become king, it will happen without his intervention, showing a distinction between Macbeth's initial hesitation and Banquo's wisdom in dealing with the witches.