challenge: When did Charles-Antoine Rochat serve as the Secretary General of the Ministry of Foreign Affairs and International Development?
  
  A. From 1 January 1946 to 31 August 1947
  B. From 3 January 1942 to August 1944
  C. From 1 September 1944 to 31 December 1945
  D. From 1 January 1940 to December 1941
  Answer: 