I can't see the side paragraph but I think its a detailed desript of his thoughts.. If I recall it correctly
Once in A Lifetime is from the 2nd part of Jhumpa Lahiri's Unaccustomed Earth which is the collection of short stories. Like the other stories this story also deals with the cultural issues of Bengali Americans. Told from the perspective of the third-person, according to the option C, the narrator tells the difference of the modest house of her friend in this excerpt.
The Italian sonnet was mostly used by Petrarch, and it has a specific structure. It contains 14 lines, separated into one octave (a stanza of 8 lines), and one sestet (a stanza of 6 lines).
When it comes to the relation between the structure and the theme, this means that the octave introduces the idea of love within the sonnet. The poet talks about his beloved and gives us an insight into his feelings. On the other hand, the sestet analyzes his own emotions and explains in further detail why he is so infatuated with the woman (in Petrarch's case, he always wrote about Laura).