Which of the following is an example of a formal region? A Mexico
B Southern California
C the Mississippi River valley
D the New York City metropolitan area

this article will :

answer; i believe the correct answer is (the willamete valley);

straight down to hell mate

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.