challenge: What was Edgar Dawes' involvement in Australian politics?
  
  A. He was an unsuccessful candidate for the Australian Senate in 1937 and the electorate of Adelaide in 1940
  B. He was a member of the Australian Parliament from 1937 to 1940
  C. He was the leader of the Labor party from 1940 to 1945
  D. He was a successful candidate for the Australian Senate in 1937 and the electorate of Adelaide in 1940
  Answer: 