D.) Wagner act
civil rights has to do with discrimination,
Fair labor standards act controls minimum wage, child labor etc.
Occupational health and safety (OSHA) has to do with the safety of the workplace,hygiene and proper cleaning etiquette, etc.
Equal pay act is waged based on gender.
so you are left with D.
The law that provides Steven a right to become the member of the labor union is the Wagner Act.
Option D is correct.
Wagner Act came up in the year 1935 and was considered to be the most important law in respect of laborers in the country of US. It was enacted by the seventy fourth Congress of US country in the twentieth century.
Wagner Act also known as National Labor Relations Act that was introduced for providing the rights to workers at their workplace. This act permits the workers to became a member of labor union at anytime and can negotiate with their employers on any matter. It also restrained the employers from doing any unfair and misleading practices. This act mainly introduced for the workforce and their respective rights.
Therefore, the law that permitted Steven to be the member of the labor union was the Wagner Act.
Learn more about the Wagner Act in the related link:
https://brainly.com/question/25970080
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