Which of the following best illustrates a Threshold Guardian and its function?

• A. The Sphinx in Oedipus or a gatekeeper figure; they test the hero's readiness to enter the journey.
• B. A mentor who guides the hero helps prepare them for the journey.
• C. The Shadow is a lurking force that the hero must confront in the final act.
• D. A Trickster adds uncertainty but isn't a Threshold Guardian.

Answer: (A)