which of the following groups frequently protested the hiring of unskilled factory workers in the…

which of the following groups frequently protested the hiring of unskilled factory workers in the 1800s?\ncraft guilds\nlabor unions\npinkertons\ntrade unions
Answer
Brief Explanations:
In the 1800s, labor unions aimed to protect workers' rights and interests. They often protested the hiring of unskilled factory - workers as it could lower wages and working standards for all workers. Craft guilds were more prominent in earlier historical periods before the rise of industrialization. Pinkertons were private security agents, not groups that protested hiring practices. Trade unions are a type of labor union, but labor unions is a more general and appropriate term here.
Answer:
B. labor unions