Which of the following are national us holidays?

a. columbus day and flag day

b. valentines day and day

c. memorial day and mothers day

d. labor day and veterans day

would not cooperate with each other voluntarily.

the main inference that can be drawn from jean jacques rousseau's book the social contract is: a. people can enjoy civil and physical freedom, even if it sometimes harms society.

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.