The strength of the federal government
they worled for reform and social services
Answer:
Explanation:
The second industrial revolution changed the industry and trade of Europe in many ways. It changed the conditions under which the workers did their work. The factories centralized work in buildings that were made with one purpose in mind. Products were made differently because of the assembly line so the time when one worker did something from beginning to end was gone. And many craftsmen were replaced by machines of many sorts.
The answer you're looking for is the first option. I hope this helps!