How does Oedipus plan to confirm his role in Laius' murder?

Oedipus plans to confirm his role in Laius' murder by summoning a former servant of Laius. This choice highlights his determination to uncover the truth surrounding the murder and his past. By seeking out someone who was directly involved with Laius, Oedipus hopes to gather firsthand evidence or testimonies that can clarify the circumstances of the crime. This approach is crucial, as Oedipus is driven by a commitment to truth and justice, even if the revelations may lead to devastating consequences for himself.

The other options, while they appear plausible in the context of Oedipus' quest for knowledge, do not align with his specific plan of action. Consulting an oracle introduces the idea of external prophecy, while investigating the location independently or confronting Creon suggests alternative methods that do not directly involve obtaining information from a key witness connected to Laius. By choosing to summon a former servant, Oedipus takes a more direct and personal approach to uncovering the truth, which is central to the unfolding tragedy in "Oedipus Rex."