Explanation:
Oh hi nice to meet ya.....
Immortality cause love don't mean jack.
He concluded that the hope that his love awaits him at the and of his voyage. So the answer is letter D. It is poem by Alfred, Lord Tennyson in 1889. It uses metaphors to compare death and words such as "sandbars" to relate it to the tiber of life.
In order to find theme look for what the story is trying to teach you. You could also look for the life story the author included.