challenge: What was Marijan Pušnik's biggest success during his four-year tenure as manager of Celje?
  
  A. Finishing second in the 2002-03 Slovenian PrvaLiga and runners-up of the 2002-03 Slovenian Football Cup
  B. Winning the Slovenian Football Cup in the 2001-02 season
  C. Winning the Slovenian PrvaLiga title in the 2002-03 season
  D. Eliminating a top-tier European team in the UEFA Champions League
  Answer: 