Family farms in the midwest have been replaced by large farms for all of the following reasons except a. modern machinery. c. pressure from foreign competition. b. push and pull migration factors. d. increase in the yields of the harvest.

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.