After 1830 the urban areas of the country grew more rapidly than the rural areas. By 1890 industrialization had produced substantial growth in cities, and 35 percent of Americans lived in urban areas, mostly in the northern half of the United States.
Parallelism hope this helps if not sorry not sorry
a you did not explain it well do not reply
Hello!
I think the answer is option B. I am in the review right now so I will let you know if it is right or not.