All of the following occurred due to the invention of the railroad except A transportation costs increased
B. agricultural activities moved further west
C. transportation times decreased
D. agricultural products were shipped longer distances
Please select the best answer from the choices provided.

Which options most accurately assess the impact of transportation improvements (e.g., railroads, canals, steamboats, transcontinental railroad) on the settlement of the west? ***(select all that apply.)*** a. they led to an increase in population density. b. they made it easier to travel long distances. c. they in establishing towns. d. they led to the development of the fur trade. e. they allowed for international travel.