You have more people with no jobs, loses houses, houses become abandoned and more people on the streets. long story short it'll make everything cheaper to support the lower classes.
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The answer to this is true
Choose:
C. A sharp increase in factory jobs in the North and the Southwest
attracted workers.
D Americans began to look at political issues from a regional, instead of national, perspective.
I think it is D because transportation helped people go to far away places, and manufacturing produces goods.