challenge: What was Li Zhi's occupation after retiring from military service?
  
  A. He worked in Nilka County in Xinjiang as a manager
  B. He worked in Nilka County in Xinjiang as a labourer in the grains department
  C. He became the General Manager and Chairman of Xinjiang Hops Holdings Ltd.
  D. He worked in the Region's Light Manufacturing Bureau
  Answer: 