Lady Macbeth will drug the king's guards, allowing Macbeth to sneak in and stab the king to death with a guard's dagger. d. Lady Macbeth will poison the guards and kill the king herself while Macbeth establishes an alibi with Banquo.
The word that could be best used is A. Arrogant. He is spiteful because of his arrogance as it is amusing to him, and he believes that he is better than others.
