In contrast to the knights of labor, the american federation of labor advocated a. using secrecy and violence against employers. b. concentrating on improving wages and hours and avoiding general social reform. c. uniting both skilled and unskilled workers into a single large union.

The correct answer is b
In the nineteenth century the knight of labor aimed to bring all types of workers to a union to improve working hours and working conditions for laborers. It aimed at uniting skilled and unskilled workers into a union.However, unlike the knight of work the american federation of labor focused on improving of wages, working hours and also avoiding general social reforms.

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