Answer and Explanation:
A. a policy adopted during this period was the economic policy known as laissez-faire. This policy was totally focused on economic liberalism and believed that the government should not interfere in commercial relations and let trade regulate itself, including in matters related to wages and conditions and work.
B. The Social Gospel was a movement that contributed to this conflict because it stated that the government had a responsibility to help the working class and claimed that this aid was made with the interference in labor rights. The government and businessmen, however, had tried to combat this thought.
C. The evidence that can be presented on this subject is the constant strikes caused by workers who demanded better working conditions and wages, such as the Great Strike of 1877 and the Pullman Strike, in addition, can be presented as evidence of government violence in trying to prevent these strikes.