Answer:
D. The old can regain honor by taking up challenges again.
Step-by-step explanation:
In his poem "Ulysses", Alfred, Lord Tennyson wrote of the hero Odysseus' old age living. He addresses the adventurous streak of Odysseus, saying that he can't stay at home and do nothing and how he wished to be out at sea again.
Based on the excerpt provided from the poem, the narrator admits that his mariners are old but that "Old age hath yet his honor and his toil". Being old is not the end of living one's life. "Some work of noble note, may yet be done," claims the narrator, saying that even in old age, one can still do things he wants to. They are still capable of attaining greater achievements. So, the main theme of this excerpt is that the old can regain honor by taking up challenges again.