The repetition puts emphasis on his thoughts, so A is your answer
“any girl or boy who has not reached adulthood, for whom the street (in the broadest sense of the word, including unoccupied dwellings, wasteland, etc.) has become her or his habitual abode and/or sources of livelihood, and who is inadequately protected, supervised or directed by responsible adults”
The speaker is Holden Caulfield, the narrator of the cult novel "The Catcher in the Rye", by recluse writer J.D. Salinger. Holden is a teenager who escapes a boarding school in order to spend a few days in New York, where he interacts with strangers and experiences new things.
Meaning and context: When Holden says he has Jane Gallagher on the brain again, he means he cannot stop thinking about her. Jane is a girl whom he deeply admires, but at the same time he never makes the first move. When he learns his roommate has a date with Jane, he is assaulted by jealousy. The complete quote goes like this:
"All of a sudden, on my way out to the lobby, I got old Jane Gallagher on the brain again. I got her on, and I couldn't get her off."
What literature is this in?
Answer:
uh I think it's like Google assistant or something