Despite Having Become Allies with Both Germany and Italy, Japan

Despite having become allies with both Germany and Italy, Japan

A) remained on the sidelines during the 1930s, in order to continue improvements within the country.
B) was too busy fighting Chiang Kai-shek in China to want to help either of them prepare for war.
C) 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 those powers unwilling to help when the French moved into Southeast Asia and began to take over Japanese-held territories.