The correct answer is B. In 1840, to move lumber from Cumberland, Maryland, to Washington, DC, i would transported it by barge along the Chesapeake and Ohio Canal.
The Chesapeake-Ohio Canal was a canal of the Potomac River, active between 1831 and 1924, linking the cities of Washington D.C. and Cumberland (Maryland). It was used mainly to transport coal from the nearby Allegheny Mountains.
