challenge: Where did the 2013 ICF World Junior and U23 Canoe Slalom Championships take place?
  
  A. Liptovský Mikuláš, Czech Republic
  B. Liptovský Mikuláš, Slovakia
  C. Liptovský Mikuláš, Hungary
  D. Liptovský Mikuláš, Poland
  Answer: 