What was the punishment Cassandra faced for rejecting Apollo?

Cassandra, in Greek mythology, was a daughter of Priam, the king of Troy, who was given the gift of prophecy by the god Apollo. However, when she rejected Apollo's advances, he punished her by cursing her prophecies to be disbelieved by all. This means that although she possessed the ability to foretell the future accurately, no one would accept or heed her warnings, leading to tragic consequences—most notably her predictions about the fall of Troy that went ignored.

This punishment highlights a critical aspect of her character: she was doomed to know the truth about future events but powerless to convince others of it. The other choices, while they may suggest various forms of punishment or consequence, do not accurately describe the true nature of the punishment that specifically stems from her rejection of Apollo. Thus, the option stating that her prophecies were made unheeded correctly captures the essence of her tragic fate.