In which boroughs would you not find a branch of the new york city public library?

The boroughs which does not have any branch of the library is Queens.

Explanation:

The new york city public library or simply the NYPL  is one of the most prestigious and 2nd largest public library which has its roots across the United States but there are certain areas where the library does not have branch. As, due to some reason no branch of the public library is situated in the area. As the NYPL is open to all the free folk and it provides all  the most relevant books and notes that are related to most of the subjects and concepts.

The sun's parallax would be 180 degrees, greater than which you can't get.  so a. would be your anwser 

Themes; subfields is the answer