Which of the following is not an assumption that Von Thunen’s model of agricultural land use makes?

A.
Goods are transported by railroad, which will result in a decrease in production costs.
B.
There are no geographic barriers like mountains or rivers that get in the way of transportation.
C.
The same agriculture could be produced in any direction because the surrounding land is flat.
D.
Climate and soil quality are the same throughout the model geographical area.

Please select the best answer from the choices provided.

D.