Well the first thing to do is answer it if its important or just let it ring
Thetis tells Achilles that he has the choice to either return home and live a long life without glory, or die a glorious death fighting at Troy. ... Achilles decides to fight, knowing that he is sealing his fate when he returns to battle. Ultimately, the relationship between fate and free will in the Iliad remains unclear.
Answer: "Hello, to whom am I speaking with"
Option 3. Example
Simply because it uses key words like “or”