Answer:
The managers of the steel mills sent guards to violently attack the strikers, is the right answer.
Explanation:
The Homestead strike began on 1st July 1892, resulting in a battle between protesters and special security representatives on 6th July 1892. This battle forms a key event in the labor history of the United States. During the course of this strike, the managers of the steel mills commissioned guards to vigorously tackle the strikers.