Answer: In the late 1800's and early 1900's, urban areas of the United States attracted thousands of immigrants because of the ready availability of industrial jobs.
Check out this site: https://openaccess.leidenuniv.nl/bitstream/handle/1887/13576/03.pdf?sequence=3
Please take the time to read it. Mark me the brainliest.
The correct answer is A and B they are both landlocked