Hello, I could probably answer it more surely if the question was provided in its original format. But for how it was presented, I believe the answer would be C. A callout.
A callout (or call-out) in publishing is a short excerpt within a bigger text, somehow highlighted to call the reader's attention out to that part, specially. It can be a short string of text with its words connected by lines, dots, arrows, or similar, a sentence in bold separated from the text, or written in a different format, usually in a larger font. - This one is very common in magazines and newspapers. (and I believe this is the type that was presented on this excerpt original format).
The literary device being used is Repetition.
Answer:
(2) Bustling.
Explanation:
Colm Toibin's novel "Brooklyn" is about the story of a young woman stuck in between her life in Brooklyn and her hometown in Ireland. The protagonist Eilis Lacey had been married secretly to Tony where she has a job in Brooklyn. But when she had to go to Ireland for the funeral of her sister Rose, she was led to stay longer and even had a brief relationship with a man named Jim. But when her secret marriage was on the verge of being revealed, she decided to tell her mother about Tony, left a letter for Jim and went back to Brooklyn.
The statement that is mentioned in the question<em> "And we are worked off our feet"</em> is from the part where Miss Kelly had called on Eilis to offer her a job in her shop as a bookkeeper. By this implication, Miss Kelly meant that her shop is busy and that they have a lot of customer.