challenge: Which of the following generals planned the 1997 Turkish military memorandum operation?
  
  A. Çevik Bir, Çetin Doğan, and Necdet Timur
  B. İsmail Hakkı Karadayı and Teoman Koman
  C. İsmail Hakkı Karadayı, Çevik Bir, Teoman Koman, Çetin Doğan, Necdet Timur, and Erol Özkasnak
  D. Only Erol Özkasnak
  Answer: 