Keats used the Petrarchan sonnet form. The repeated rhyme-scheme of the octet helped it capture the power, sounds and moods of the sea
I think the theme of "Young Goodman Brown" is (D) The forest is a place where dark deeds take place.
This is because the author likens the forest to the unseen and naturally Goodman Brown expresses his distrust and fear as he cautiously enters it. The forest reflects the views of the 17th century Puritans who initially feared the forest but then also wanted to dominate it once they had overcome their fears. Goodman Brown also sees the Devil himself in the forest.
I believe that the correct answer is D because it is already stated once that they need the sirens so it is giving us a fact that has already been stated.