Question

one effect of industrialization in the united states in the late 1800s was the organization of labor unions as a way for workers to gain bargaining power in the workplace. why did this development often lead to violence? union leaders would not negotiate with factory owners. government officials used force to bring about better working conditions. business owners use force to protect their workplaces from unionization. union leaders required u.s. workers to join worldwide strikes.

Explanation:

During the late 1800s industrialization in the US, business owners resisted unionization. They often used force (like hiring private security, bringing in strikebreakers, or getting government - backed support) to protect their workplaces from unionization. Union leaders generally did want to negotiate (so the first option is wrong). Government officials at that time often sided with business owners rather than using force for better working conditions (second option wrong). There's no basis for the claim about union leaders requiring US workers to join "worldwide strikes" (fourth option wrong).

Answer:

Business owners use force to protect their workplaces from unionization.