How did America's cities change with the influx of immigrants?

The influx of immigrants led architects to develop new approaches to housing and transporting large numbers of people. Sanitation conditions of major cities became inadequate because cities were simply unable to keep up with the influx of immigrants. These cities also became overpopulated.

the answer is a, salt plain

explanation:

i think it is in quadrant 4.

the five year plans were part of a command economy. there was little choice in what would be emphasized for the current 5 year period.

the answer to democracy or totalitarianism is a bit harder. in stalin's time, russia was totalitarian. now that's not entirely true. putin has moved towards at least the boundary.