Respuesta :
The correct options are B). Railroads allowing food to be sold farther from where it is grown and D). Manufacturing technologies growing in cities
What impact did the technology had on great migration?
Technology affected every aspect of migration as it provides access to information about pre-migration, journeys, destination etc.
Technological advancement connected the displaced populations to the information and resources, that gave them a greater capacity to support themselves.
Even, immigrant inventors contributed in the process of technological development through the way of innovation for the long-run economic growth.
Learn more about the Great Migration here:-
https://brainly.com/question/14178058
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