The 1920s is known as the jazz age. what does that tell you about jazz music?

a. jazz was the only kind of music played during the 1920s.

b. jazz was an important element of american culture during the 1920s.

c. jazz music was popular only during the 1920s, and no one listens to it anymore

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.