Final answer:
The region not associated with the worship of Ares is Crete. Ares was associated with regions like Thrace, but no significant worship of Ares in Crete is mentioned in the provided texts.
Step-by-step explanation:
The region NOT associated with the worship of Ares, according to Mythology Unbound, is Crete (D). According to references in mythology, Ares, the god of war, was particularly associated with Thrace and worshipped by the Thracians, as well as the Boeotians and people in Attica. Mythology often depicted Thrace as a source of various gods and heroes, including Dionysos and the mythological figure Orpheus, who are part of the Greek pantheon. However, there is no mention of Ares being significantly worshipped in Crete within the given contexts, making it the correct answer to the question.