The idea of laissez faire or how much the government should do

Laissez-faire quite literally means 'let it be'. The principle of laissez-faire economics, for instance, states that business and trade should be free of government intervention.

an expansion is one of two basic business cycle phases; the other is contraction. the transition from expansion to contraction is a peak, and the changeover from contraction to expansion is a trough.

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.