<em>Neither A or C is corrects the absolute answer would be </em>
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<em>B) The social problems of African Americans.</em>
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<em>Hope this helped</em>
Answer:
Labor unions arose in the nineteenth century as increasing numbers of Americans took jobs in factories, mines, and mills in the growing industrial economy.
The Knights of Labor, founded in 1869, was the first major labor organization in the United States. The Knights organized unskilled and skilled workers, campaigned for an eight hour workday, and aspired to form a cooperative society in which laborers owned the industries in which they worked.
The Knights’ membership collapsed following the 1886 Haymarket Square riot in Chicago. By 1886 the American Federation of Labor (AFL), an alliance of skilled workers’ trade unions, was growing.
<span>Medieval society was feudal, based on a rigid, pyramid-shaped hierarchy and divided into three orders, or social classes: the nobles, the clergy, and the peasants.
</span><span>People believed that these three orders were established by God and nobody should change this system. There was no way out of this social hierarchy.</span>
The correct answer is:
a method of labor-management to improve overall efficiency
Explanation:
Time Study is the analysis of a particular job by a modified worker in an attempt to find the most effective method in terms of time and effort. Time Study includes the time necessary for a job or task to be performed using the best system
Belief that people are motivated by their own self interest, or skepticism.