The two causes of World War 2 were:
(i) Conflict of ideology between Dictatorship and Democracy
(ii) Inefficiency of league of Nations.
The correct answer is more prosperous and less democratic
Japanese conquests led to a wave of euphoria and enthusiasm in Japan, which, coupled with extensive indoctrination, developed a strong nationalism that defended imperialist ambitions. Throughout the 1920s and 1930s, there was an extreme right-wing authoritarian regime in Japan that fueled nationalist militarism and Japanese imperialism.
This nationalist and imperialist discourse in Japan claimed that the mission in China was unique and exclusively civilizing, but it is known that Japanese interests were motivated by economic issues. During the 1930s, two incidents led to the Japanese invasion of Manchuria (northeastern China) and, finally, the start of the war.
All of the following developments in Germany during the 1930s (the construction of fortifications along the Rhine River, the annexation of Austria, and the resumption of the military draft to create a large army) were violations of the Treaty of Versailles, except D) the return of the Saarland to German control.
The question can be classified as to what purpose they will use their power. Either for selfishness or selflessness. For selfishness, they are corrupt and will make their people suffer. For selflessness, they will try to find answers or solve common issues for the people and or for the country.
They are being established to defray further expenses of defending, protecting and securing.