TOEFL Listening: TPO-TOEFL阅读TPO - UQ64_3VT958WZ1LUN$

Paragraph 5 mentions that the Erie Canal led to a reduction in all of the following EXCEPT A. the length of the route that goods from the West traveled across to reach eastern markets B. the cost of transporting freight C. the price of produce from western states D. the amount of produce from western states that was shipped on rivers