The first one! It’s always: comma, quotation marks “”then period.
Answer:
A law office on Wall Street, New York City; mid 19th century
This story's setting is central to our understanding of what's going on here – the original subtitle, "A Story of Wall Street," makes it clear that we're supposed to take its location into account from the very beginning.
Explanation:
Sorry if its less than 150 words... Really sorry