The answer is the 1st one. Hope it helps :)
Answer:
Wealthier people moved further away from the city centre.
Explanation:
As Industrialisation Increased, Immigration took place and city became crowded with people and workers. Due to new urban transportation wealthier people started moving farther away from city centres.
They could afford long distance travel in quick time and afford pollution free peaceful living. Social economic segregation in the 1800s led to concentration of poor and middle class people in the city centres and the American Dream.
The border states were important to the north during the Civil War because they were slave states that could have joined the Confederacy. *put into own words*
