Which diagram shows how changes in transportation affected urban areas in the United States?

The diagram that shows the effect of transportation is A. Interurban street cars were developed - Middle-class surburbs began to appear.
When interurban street cars were built, it meant that people had more options for transportation within cities.
As a result, they were able to live further away from the city center and founded homes in suburbs outside major cities.
Find out more on interurban street cars at https://brainly.com/question/12243237.
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