What is the central idea of the "a chicken for every pot" article?

Presidential campaigns always include plenty of images of the candidates and food. Sometimes, they are chomping down hamburgers in a diner to show that they are regular guys like everyone else.

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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.