Answer:
a. Divine authority holds the ultimate power.
Explanation:
The prophet Teiresias reveals to Odysseus that Poseidon is rebuffing him for having blinded his child Polyphemus.
Teiresias says to him:
"...offer sacred hecatombs to the immortal gods who hold the open sky, all in the order due. Upon yourself death from the sea shall very gently come and cut you off bowed down with hale old age. Round you shall be a prosperous people. I speak what shall not fail."
