Fragment is the correct answer
Since it dark and its night i feel like there should be the sound of crickets that always what i hear at night. the mood of the painting seems dark but quiet.
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.
I believe that It is C, because although the passage does focus on Mathilde's love for expensive things, broadly the subject is how Mathilde is discontent with the lifestyle she is now living, and D is too broad, and B is also too broad.