challenge: Who were the defending champions of the 2008 Open 13 – Doubles?
  
  A. Julien Benneteau and Nicolas Mahut
  B. Marc Gicquel and Jo-Wilfried Tsonga
  C. Fabrice Santoro and Nenad Zimonjić
  D. Arnaud Clément and Michaël Llodra
  Answer: 