I believe that in this excerpt, that what is being explained is a couple of things. The wife, Rachel, is jealous of her newborn daughter, as her husband, the father of this child, seemed more absorbed in his newborn daughter, than his wife, who just gave birth to her. The wife, from what is described, may have fallen under some sort of illness in the midst of childbirth, and was gradually getting worse over time. The wife also seemed to have suspicion towards the husband, and felt that what she'd once had, I presume his devotion and adoration towards her, had been taken from her upon the birth of her child, and she disliked that fact.
Welp, this is my opinion on this. I really hope that this helps you out!
The correct answer for the question that is being presented above is this one: "nouns and verbs." Language was one of the first and probably the most important, enabling technologies that humans acquired. It has been the focus not only of analytical linguistic study but also fantastical and science fictional speculation.
