This kind of information could be found on a survey where a comparison between the poem and the song can be found-.
In the case of the notecard can be used as a speech reminder and the source card might be used for indexing as well as referencing main pages.
ITS (A.) Cause he said "you" which is directly addressing the reader.
Due to the fact that I have not read this book i would not be able to accurately answer this question however, I can offer a suggestion and that would be B.
