challenge: Where is the Romanian Embassy located in the United States?
  
  A. 1607 23rd Street, Southwest, Washington, D.C. 20003
  B. 1607 23rd Street, Southeast, Washington, D.C. 20001
  C. 1607 23rd Street, Northeast, Washington, D.C. 20002
  D. 1607 23rd Street, Northwest, Washington, D.C. 20008
  Answer: 