What does productivity measure for a business? A. Its efficiency in creating its product
B. Its ability to generate capital investment
C. Its variety of products on the market
D. Its share of a market compared to competitors.

answer; i believe that the correct answer is (chronological order);

the graph shows the spread of railways in the 1800s.

based on the graph, the conclusion that can be drawn about germany is answer d)   by 1880, germany had more rail lines than great britain and russia.

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.