challenge: Who won the 2012 Kazan Kremlin Cup – Doubles?
  
  A. Yves Allegro and Andreas Beck
  B. Alexander Bury and Mateusz Kowalczyk
  C. Mateusz Kowalczyk and Yves Allegro
  D. Sanchai Ratiwatana and Sonchat Ratiwatana
  Answer: 