challenge: What is the significance of the Kunjed Gyalpo, according to David Germano?
  
  A. It is a tantric text that belongs to the Mahayoga system
  B. It is a minor text that emerged during the economic boom of the 11th century
  C. It is a historical record of the political decentralization of Tibet during the 9th century
  D. It is a major canonical work of the Great Perfection that emerged from the 'dark period'
  Answer: 