What was the main benefit of industrialization

Which product would have been most likely to have been traded in this area at this time?

The service industry in the united states grew in the late 1800s. what was one effect of that growth? the number of people with jobs in factories as unskilled workers decreased. the number of people with jobs in factories as unskilled workers increased. the middle class grew as people took jobs as clerks, lawyers, and teachers. the middle class shrank as people left jobs as clerks, lawyers, and teachers.

Which country’s foreign policy is designed to threaten u.s. economic superiority? china russia iran japan