Respuesta :
The spread of railroad makes it easier to move natural resources and finished goods around the country.
During the 1800s, the availability of natural resources such as timber, coal, iron leads to the growth of the railway and transport industries.
The Railways system enabled faster transportation and also lowered the cost of transporting many kinds of goods across great distances.
The spread of the railroads is also essential to the nation's industrialization because its encourage transport of goods, raw materials, natural resources etc and provide job opportunities.
Therefore, the Option D is correct because the spread of railroad makes it easier to move natural resources and finished goods around the country
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