Which sentence correctly uses commas to separate the elements of an address?
a. the university club library is located at 1 west 54th street, new york, new york.
b. the university club library is located at 1 west, 54th street, new york, new york.
c. the university club library is located at 1 west 54th street new york, new york.
d. the university club library is located at 1 west 54th street, new york new york.

In an address, a comma should be placed after the street and between the city and state. Also, the place number and the street should not be separated by a comma, nor the state and zip code, in case there is any.

Therefore, the sentence that correctly uses commas to separate the elements of an address is a. The University Club Library is located at 1 West 54th Street, New York, New York.

the correct answer is: d

where are the multiple choice answers?