How did labor unions win the support of workers?
by standing against unskilled laborers
by going against the free market system
by protecting the right of workers to better treatment
by promising comfortable retirement incomes

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.

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