I believe it is A. British,West German, American
On June 26, 1948 through September 30, 1949 the western allies organized the Berlin Airlift,to carry supplies to the people of West Berlin. Aircrews from the United States Air Force, the Royal Air Force, the French Air Force, the Royal Canadian Air Force,the Royal Australian Air Force,the Royal New Zealand Air Force,and the South African Air Force flew over 200,000 sorties in one year,providing to West Berliners up to 12,941 tons of necessities in a day,such as fuel and food.