Describe the factors that led people to form the counterculture movement, and what factors led to its decline

The anti-war movements in the US started because of the U.S. involvement in the Vietnam war. It started among peace activists and leftist intellectuals, usually on college campuses.

Explanation:

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.