The best and most correct answer among the choices provided by your question is the fourth choice or letter D. The <span>road connected Ohio with the East is the National Road.
</span>The National Road (also known as the Cumberland Road) was the first major improved highway in the United States built by the federal government. Built between 1811 and 1837, the 620-mile (1,000 km) Road<span> connected the Potomac and Ohio Rivers and was a main transport path to the West for thousands of settlers. </span>
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