Final answer:
The Porter answers the castle door in Scene Three of Macbeth.
Step-by-step explanation:
The Porter answers the castle door in Scene Three of Macbeth.
When the Porter hears knocking at the gate of Macbeth's castle, he imagines himself as the gatekeeper to hell.
He comically answers the door and engages in a humorous monologue about various types of sinners who might be trying to enter.