From everything I could find it was Carl himself, But if you heard the poem online somewhere it could've been anywhere. Where did you hear it?
Answer:
Because it could have been somebody very close to them.
Explanation:
Enjambment - the sentences do not finish with the end of the line.
Simile - "like a slackened drum"
Maybe even hyperbole, since it is an exaggeration.
The second option is definitely more complicated
D. Mrs. Van Daan is jealous.