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it is one of these

Explanation:

These large concentrations of people are referred to as complex societies or civilizations, which share many features, including having a dense population, an agriculture-based economy, a social hierarchy, a division of labor and specialization, a centralized government, monuments, record-keeping and writing

All Of The Above

Explanation:

Think of the human civilization as of today to help you! We have the arts, religions, a writing system ( many in terms of languages ), classes (lower, middle, higher in terms of wealth) cities and governments around the globe. This could also be seen in Rome and various other places in the pre technological advanced eras.

answer; people where able to travel across the u.s.a faster than any other mode of transportation,travel time was about a week,from coast to coast