Select ALL the correct answers. What are two ways that the information in the section titled "An Unexpected Effect" influences the passage as a whole?
It establishes the canal's influence on American culture beyond the merely commercial aspects.
It explains how the canal established the best route for American superhighways and railways.
It describes how the ideal utopian lifestyle spread along the canal and became the norm across America.
It emphasizes the role the canal has played in the development of American recreational resources.
It illustrates the drive the canal created for the westward expansion of American society.