PLeASE HELP!! What were the border states?

D

Explanation:

I got 100% on a test it had this question!

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.

c, because the american revolution was from 1765 to 1783.