challenge: During which time period did Wal Murray serve as the Deputy Premier of New South Wales?
  
  A. 15 July 2004 - 1 May 1976
  B. 25 March 1988 - 26 May 1993
  C. 1 May 1976 - 3 March 1995
  D. 11 September 1931 - 15 July 2004
  Answer: 