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.
The lesson is to <span>instill an already widespread belief in ghosts.</span>
Identify main points of an excerpt. Then you can make conclusions and then create a summary
Yes although it wasn’t from appearance they laugh in the same, loud way, and sometimes they have the same ideas.