challenge: Where is 165 West 57th Street located?
  
  A. On the north side of 57th Street between Sixth Avenue and Seventh Avenue
  B. On the west side of Sixth Avenue between 58th Street and 59th Street
  C. On the south side of 57th Street between Fifth Avenue and Sixth Avenue
  D. On the east side of Seventh Avenue between 56th Street and 57th Street
  Answer: 