[WH] - The narrator who never talks

"I have now heard all my neighbor's history, at different settings, as the housekeeper could spare time from more important occupations" (page 134).

There were plenty of places that in the novel where we see Lockwood directly address the reader and then return to Nelly to tell the story, but this was the quickest for me to find.  There are many reasons why this book confuses me, but I have established it in my first blog post (the last that you'll read if you go from top to bottom) that Bronte is a meany who intentionally made her story confusing to parallel the relation problems.

So why would Bronte decide to make a narrator to emcee the novel and just introduce the new narrator every chapter?  Well, there could be a variety of reasons for this and I believe a combination of the bunch is probably the best reason, but like every rude AP test makers, there has to be a "best" reason for everything so I will make myself five choices and why one is the best.

• Since Lockwood is an new member of the society (poor guy...) it would make sense in a story sense that he would ask an older member of the community about the history of the families.
• It allows the Bronte to remind us a few times a chapter that everything in the story, up to this point at least, is a flashback and that no memory is one hundred percent error free so certain parts will be understated or exaggerated.
• As a participant in the action, Nelly will underplay parts that would hurt her credibility and exaggerate where she was a major player in the game.  I noticed this in chapter 15 when she passively watched Heathcliff crush Catherine as if she was not there.
• We'll just say that D was a really stupid choice that I immediately threw out because I can't think of another reason why Bronte would change narrators.
• Aliens came and...

A) is a very good choice, but no author ever writes a book so that it makes sense so clearly this is wrong.   Both choices B) and C) are very similar and have equal merit, but I have to go with answer B) since it seems like the "best" choice based on it's two literary terms and best encompasses all the chapters and not just the more recent ones that are more clear in my mind at the moment.