【单选题】It is said that George Washington was one of the first to realize how important the building of canals would be to the nation's development. In fact, before he became President, he headed the first co...
A.
He was President at the time the Erie Canal was built.
B.
He was involved in pioneering efforts to build canals.
C.
He successfully opened the first canal in the United States.
D.
He commissioned engineers to study the possibility of building the Erie Canal.