Answer:
Macbeth
Explanation:
In Shakespeare's play "Macbeth," the decision to kill King Duncan is primarily made by Macbeth and his wife, Lady Macbeth. After Macbeth encounters the three witches who prophesize his rise to power, including becoming king, and hearing that Duncan plans to visit his castle, Macbeth becomes consumed by the idea of seizing the throne. Lady Macbeth, driven by ambition and a desire for power, persuades and manipulates Macbeth into carrying out the regicide to fulfill the witches' prophecy. The murder of King Duncan is a pivotal event in the play and sets off a chain of tragic consequences.
