The correct response highlighting a difference between the character's background in the passage and the background of Jane Eyre is:
This character was not accustomed to living in a large mansion; Jane Eyre was.
In the passage, the character expresses a sense of loneliness and uncertainty about living in a mansion (Thornfield), contrasting it with her previous experience of living in a dormitory with other people. Meanwhile, Jane Eyre becomes familiar with Thornfield as she is hired there, having come from a less privileged background but ultimately finds herself in that grand setting.