challenge: According to reports, what has the Marxist–Leninist Communist Party (Turkey) been doing in Syria since 2012?
  
  A. Sending volunteers to fight with the Islamic State of Iraq and the Levant
  B. Supporting the Syrian government forces
  C. Sending volunteers to fight with the PYD's People's Protection Units (YPG) of Rojava
  D. Providing humanitarian aid to refugees
  Answer: 