Answer: I haven't actually read the book, so I'm not sure. It could be any of these. However, try to reread and look for some clues that will help lean you towards the answer. Personification would be adding human traits to some sort of object, metaphor is when you're saying one thing by saying another thing, and mood would be related to tone, which is all about word choice. I hope this helps in some way :)
The irony of the story relies on the principle that nothing is truly perfect in life. It was not the fire that directly disabled Rochester but the events that surrounded the people who were in that fire which caused Rochester to lose his eyesight and one of his hands. This was not entirely a bad experience because it ultimately brought him back to Jane.
B in. I have to make this lone to submit but it's B