What class struggles existed in the past?

new evidence is discovered.

oversights and errors are corrected,

new technology is applied to evidence.

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.

answer: a video that encourages an armed attack on the government.

explanation: it is a violent overthrow to the government.

hope this : )