Which of the following was not achieved by the maya civilization? a. complex social structures b. protection from collapse c. monumental architecture d. systems of writing and math

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.