challenge: What is the origin of the term 'ricky-tick' as used in the US military and law enforcement?
  
  A. Derived from the Japanese phrase 'riki-tik'
  B. A slang term for quickness in accomplishing tasks
  C. Inspired by Rudyard Kipling's Jungle Book character Rikki-Tikki-Tavi
  D. A reference to a quick and efficient military operation
  Answer: 