In "The Metamorphosis" which character(s) represent the outside world, which has turned its back on Gregor?

If you'd placed all of the above with your choices, I'd have to choose that. But judging from the words "outside world", I'd have to say the answer is B, the cleaning woman. The cleaning woman is an outsider.... not family. She also knew Gregor prior to his metamorphosis, after which, she turned her back on him.