What most accurately describes the trend in inter-city prices between 1815-1860?

Question

Quizplus · Accepted Answer

The trend during this time period was a convergence of prices in the Midwest towards the prices of goods in the east. This was due to improvements in transportation and communication, which made it easier and more efficient to move goods across long distances. As a result, the prices of goods in the Midwest became more closely aligned with those in the eastern cities.

What Most Accurately Describes the Trend in Inter-City Prices Between