Question

where did most of the u.s. cities develop in the early nineteenth century?
○ along the railroad lines in the south
○ along the rivers that lace the south
○ near the large plantations in the north
○ along the coast and waterways in the north

Explanation:

In the early 19th - century US, northern cities developed along coasts and waterways. Railroads were less developed then, southern rivers were for plantation - related transport, and large plantations were in the South, not North. So the correct option is about northern coasts and waterways.

Answer:

D. along the coast and waterways in the North