The correct answer is C. The formation of labor unions
Explanation:
The industrialization refers to the process that implied a change from the agrarian society based on agriculture to an industrial one that is based on the manufacture of products and trade. This process began in the 18th century and continued during the 19th century with the Industrial Revolution that meant the development of technology for industry and other necessary sources to abandon the agrarian society and create a new society based on industry. Due to this, during the 18th and 19th century thousands of farmers left the countryside and move to the city to work in the new emerging factories, however, the conditions in the first factories were not the best due to the number of working hours, low payments, no guarantees, and difficult conditions, due to this, workers started creating labor unions to improve working conditions and achieve goals together, which had not happened before industrialization. Thus, one of the effects of industrialization was the formation of labor unions.