What was the general plot of Helen Hunt Jackson's novel, Century of Dishonor? A. It exposed the entrepreneurial takeovers of the railway lines
B. It shed a light on “predatory wealth” taken by the factory bosses
C. It uncovered broken promises by the American government toward the Plains Indian
D. Spoke of how the taming of horses created tension between the white settler and the Plains
Indian

the answer is use of support  

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 guess so you did not explain the answer clearly so i can't