Correct answer is C, In the 19th Century, industrialization was concentrated in the Northeast mainly because this region had the greatest supply of labor.
The Northeast region of the United States, which includes states such as Massachusetts, New York, and Pennsylvania, was the first area to experience industrialization in the 19th century. This is because the region had a large population and a large number of immigrants which provided a large workforce for the new industries. The Northeast also had good infrastructure such as roads, canals, and later on, railroads which made it easy to transport goods and people.
- Option A is not correct, the West and South had natural resources such as coal, oil, and timber.
- Option B is not correct, the climate in the South was not conductive to some industries but not all.
- Option D is not correct, other regions of the country had also water transportation but not as well developed as in the Northeast
The combination of a large workforce and good infrastructure made the Northeast the ideal location for the new industrial factories and mills.