Answer: C. Throw the poisoned entrails into the cauldron.
Explanation:
The three witches (or 'weird sisters') are supernatural creatures from Shakespeare's Macbeth. They make a prophecy about Macbeth's future at the beginning of the play, predicting that Macbeth would become a king.
In Act IV, Scene I, the witches are dancing around the cauldron and adding some ingredients into it - poisoned entrails, wolf's tooth, a frog's tongue, etc. They are preparing a strange potion. After the potion is finished, Macbeth enters the stage, determined to find out the truth about the witches' prophecies.
