challenge: Who was Martha Mitchell, and why was she nicknamed 'The Cassandra of Watergate'?
  
  A. A psychologist who studied the effects of mental illness on perception
  B. The wife of a White House official who made unsubstantiated claims about the Nixon administration
  C. The wife of the United States Attorney General who correctly alleged White House officials' involvement in illegal activities
  D. A journalist who broke the story of the Watergate scandal
  Answer: 