challenge: Where does the Bom Fim neighborhood's boundary start and end?
  
  A. The intersection of Oswaldo Aranha Avenue and Sarmento Leite Street
  B. The intersection of Ramiro Barcelos Street and Barros Cassal Street
  C. The intersection of Fernandes Vieira Street and Castro Alves Street
  D. The intersection of Irmão José Otão Street and Castro Alves Street
  Answer: 