According to Herodotus, who told Xerxes of the secret pathway to Thermopylae, thereby giving away the Greeks' position? Onetas

Ephialtes

Corydallus

Ephialtes

Explanation:

Ephialtes was a Malian Greek who according to Herodotus, betrayed the Greeks at Thermopylae to King Xerxes during his invasion of Greece. This act led to the death of the Spartan King, Leonidas when the Greek force was defeated.

The Greeks offered a reward for his death which happened around 470 BC. Ephialtes was never even rewarded by the Persians whom he betrayed his people to because they were then defeated at Salamis.

the communist manifesto is an 1848 political pamphlet by the german near the end of the manifesto, the authors call for a "forcible overthrow of all existing social conditions",  ..