Respuesta :
The best option is A
Migration from farms to cities
It is estimated that about eleven millions Americans moved from the farms from 1870s to 1920s which strained the cities housing and health systems a great deal. in addition, it is estimated than another 25 million arrivals of immigrants was recorded.
Migration from farms to cities
It is estimated that about eleven millions Americans moved from the farms from 1870s to 1920s which strained the cities housing and health systems a great deal. in addition, it is estimated than another 25 million arrivals of immigrants was recorded.