Answer:
a. Cities grew rapidly as both immigrants and native-born citizens sought higher paying jobs.
Explanation:
There was widespread industrialization in the United States following the period of the Civil war. The economic boost provided by large scale production and technological innovations supplemented by the labor force provided by rural workers move to new cities, a large number of immigrants entered the United States in lure of economic opportunities.
They were formed to protect the workers who were being injured and killed on the job .They protected the workers and their families.
This would be B the answer
It may be Russia and France I’m just taking a guess, IM NOT SURE!
