a word (other than a pronoun) used to identify any of a class of people, places, things, or ideas.
Noun Examples
Man, Milk, Cow, America
These Are ALL Things
Your answer would be choice B,it offers a counterclaim to the first stanza, which is then rejected in the third stanza. I only know this because I just had this questionif we are talking about the same question.
Answer:
"Research suggests that bad moods can happen because someone is depriving themselves of something..."
Explanation:
To make a comparison between Jekyll’s transformation and real life