The nation's growing transportation system help to promote economic growth because Its made Its opened up national markets for selling and obtaining resources and helped lower costs of product
<h3>What led to the growing
transportation system?</h3>
The emergence of the industrial revolution led to the invention of railroads, train, vehicle etc.
Hence, these transportation system help to promote economic growth because Its made Its opened up national markets for selling and obtaining resources and helped lower costs of product.
Therefore, the Option D is correct.
Read more about industrial revolution
<em>brainly.com/question/13323062</em>
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