How did the growth of the railroads affect supply and demand for natural resources in the united states?

( sorry my answer is short they wont let me do just war so ignore this) xd

the right answer is the third one: turnpikes went short distances to connect markets. turnpikes, also known as toll roads, were very important for trade and transportation (of people, goods and products) in the 19th century, coinciding with the expansion towards the west. they contributed significantly to the economic development of the united states.