Which chapter title with most likely appear in the US history books organized by eras?

peace keepers

idealism to be spread

riches kept

north atlantic treaty organization.

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.