This answer is wrong because Herakles was not old when he went with Jason and the Argonauts on the Quest for the Golden Fleece ... in fact, he was in the prime of his life!
Herakles left the Quest for the Golden Fleece to finish his Twelve Labors ... after he finished the Labors, Herakles traveled and then finally died before the Trojan War began ... that would mean that Herakles died prior to 1250 BCE ... actually, Herakles didn’t really die ... he was rescued from the flames of the funeral pyre by either the goddess Nike (Victory) or the goddess Athene (Wisdom).
Herakles ascended to Mount Olympos and married his half-sister Hebe (Youth) ... Herakles’ father, Zeus, wanted him to become one to the Olympians but Herakles refused because one of the other Olympians would have to step down to maintain the sacred number of twelve Immortals on Mount Olympos.
Your answer is incorrect but don’t feel bad ... this is a tough question.