Which of the following statements best describes Japan's alliance with Germany and/or Italy?

Which of the following statements best describes Japan's alliance with Germany and/or Italy?
 
  A) Remained on the sidelines during the 1930s, in order to continue improvements within Japan.
  B) Japan was too busy fighting Chiang Kai-shek in China to want to help either Germany of Italy prepare for war.
  C) The Japanese became upset with the Germans when they were not told Germany planned to begin World War II, and again when Germany attacked Russia in 1941, and thus remained neutral in the conflict.
  D) Invaded Russia in 1931, setting up a puppet government there.
  E) Found Germany and Italy unwilling to help when the French moved into Southeast Asia and began to take over Japanese-held territories.