B would be the correct answer.
The narrator was speaking in the excerpt
you have to have helpful answers that are provided with factual evidence. And keep doing that until you get to the highest point
Here this should help, but let me know if you need more help!
D would be the correct answer
B. Disillusionment.
It is B because disillusionment is a feeling of disappointment resulting from the discovery that something is not as good as one believed it to be. So, in this case the narrator is disappointed in how her relationship ended and believes that there is no point looking for another relationship because she thinks it will end up the same as the first.