Police, state militias, and federal troops played what role in labor strikes in the late 1800s?

supported the striking workers

tried to enforce a neutral zone between striking workers and company security

guards

played no active role

supported the capitalists in strike-breaking and often fired on workers

supported the capitalists in strike-breaking and often fired on workers

Explanation:

Labor strikes are one of the responses that the labor organization gave towards the uneven or inhumane policies of the factory owners. The strikes are called up by the union leaders. During the 1880s, more than 20,000 strikes were recorded in protest of the unjust and evil policies. On the other hand, the authorities and the government together tried to curb and oppose the strikes. For this purpose, the local police, the state militias, and federal troops were given the task of ending the strikes.  

i am sure the answer is d

in the 1800s, chinese workers migrated to the united states, first to work in the gold mines, but also to take agricultural jobs, and factory work, especially in the garment industry. chinese immigrants were particularly instrumental in building railroads in the american west, and as chinese laborers grew successful in the united states, a number of them became entrepreneurs in their own right. as the numbers of chinese laborers increased, so did the strength of anti-chinese sentiment among other workers in the american economy. this finally resulted in legislation that aimed to limit future immigration of chinese workers to the united states, and threatened to sour diplomatic relations between the united states and china.