Answer:
To get workers rights and safety.
Step-by-step explanation:
I don't see a list of answers, but this is something I'm learning about right now. The purpose of the formation of labor unions was mainly to increase the safety of the laborers. A lot of factories were built cheaply, so safety wasn't a prime concern for the owners. It was really all about the money for them. So the correct answer would be somewhere along the lines of to get laborers rights and safety. Hope this helped!
-Kirito