Answer: D) his return home.
Explanation: In the Odyssey we can see the story of Odysseus, who left his home (and his wife Penelope, and his son Telemachus) to fight in the Trojan War (that lasted for 10 years), after the war was over, he starts his journey to return home, and he has to face multiple obstacles that made him last almost another 10 years before finally arrive to Ithaca (his home) where he was reunited with Penelope and their son.
