Final answer:
The answer is c) all of the above, as the Erie Canal had a major impact on America and connected the Hudson River to Lake Erie, influencing commerce, transport, and expansion.
Step-by-step explanation:
The correct answer to the question, 'Which is true about the Erie Canal?' is c) all of the above. The Erie Canal did indeed have a major impact on America, especially in terms of transportation and the westward expansion of settlements and agriculture. It connected the Hudson River to Lake Erie, thereby providing a crucial commercial waterway that linked the Atlantic Ocean to the Great Lakes region, facilitating much lower shipping costs and opening vast new markets. The Erie Canal was key in transforming New York City into the commercial capital it is today and spurring other similar canal projects throughout America.