Why is the Inca road system important?
(Look at pic)
How should I explain it?

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.

can't without checkbox

c. free trade can lead to low pay for workers in poorer countries.

this is a false claim the emancipation proclamtion freed all slaves in the rebillion states