The arrow shows the point at which military rule ended. What was the effect of the end of military rule?
economic production began to climb
economic production began to decline
GDP remained below $500 billion for ten years
GDP rose to $1 trillion within ten years

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.