Why did political leaders believe in imperialism

Many political leaders believed in imperialism and justified it claiming that it was the responibility of superior people to uplift the lives of natives. Darwin´s evolutionary theories were also adapted for this justification, applying the notions of survival of the fittest .

no options provided, here,but the answer to this question is often: a historian cites a japanese newspaper article published a year after the end of world war ii in order to draw conclusions about the effect of the war on the japanese economy.

clearly from the answer, the historian alludes to historical sources,and records to aid in analyzing and drawing conclusion on the effect of the war on the economy of japan.

i think its 5! hope i