It would be quite helpful to cite supporting details if we knew the story.
Well I've read the original...It all started after she was borrowing a necklace from a friend to look fancy when she goes to this ball/meeting. Then she looses it so the best guest is A because her and her husband were struggling to go from jewelry store to jewelry store looking for a necklace that looked just like the one she lost.
Answer: A. An illustration of the Grimm's home life.
Explanation: I think this is right please tell me if I am wrong :)