A.) A thesis does not have a stated opinion. It just needs to have information of what it is you will be talking about.
The answer to this question is the third statement which is "innate ideas exist because we are all born with them". Although there are some philosophers who disagree with this concept. Innate ideas are ideas that are inborn. We have already this idea even we don't have experience.
Both poem and the song describes the theme of loneliness and companionship. In the beginning a character is introduced of loneliness and staring at the cold. I guess the both literary texts describe how the boy should encourage himself to get out there in the world but in the end he ends up being comfortable with his own wall built. But has the desire to discover new worlds.
