Clinton's "folly" (foolish project) A.

led to the building of America's first steamboat

B.

was a failed effort to conquer Canada

Oc.

became known as the Erie Canal

D.

was a race between a steam locomotive and a team of horses

C. became known as the Erie Canal

Explanation:

The Erie canal is known as Clinton's "folly" as the project for the construction of the canal was initially thought by many as a foolish project. It was proposed by Mayor Dewitt Clinton of New York.Clinton's idea behind the construction of the canal was to connect New York and the East to the Great Lakes for the economic prosperity of the state.His opponents as well as many people criticized and ridiculed the construction of the canal by calling it as "Clinton's "folly" and "ditch".They believed that such enormous project would cost very high while procuring less return.