Answer: A. Banquo's heirs will be Scotland's future leaders
Explanation: Banquo, Macbeth’s best friend, was given a prediction by the Witches promising him that his descendants will be future kings of Scotland. Though he was skeptical about this, it out him in mortal danger with his friend Macbeth, who was willing to kill his best friend for the throne, all in an attempt to cheat fate. Banquo, after his death reappeared at Macbeth’s banquet as a disapproving ghost.