How does this stanza from the walrus and the carpenter contribute to the meaning of the poem, the sun was shining on the sea, shining with all his might; he did his very best to make the billows smoothie and bright- and this was odd, because it was the middle of the night. a it describes two of the main characters in the poem b it advances the events of the story c it introduces the nonsense tone of the poem d it expresses the deeper theme of the poem