The center of music publishing in New York was called Group of answer choices Tin Pan Alley. Broadway. Washington Square. Wall Street.

Tin Pan Alley

Explanation:

It was the name given to a group of music publishers during the late 19th century to the early 20th century in New York City. It seems to meet all the criteria your question is asking.

i think the answer could be either a or b because both are part of the post production part. hopefully this you a little.