Unions contribute to a.both structural unemployment and the natural rate of unemployment.b.structural unemployment but not the natural rate of unemployment.c.the natural rate of unemployment but not structural unemployment.d.neither structural unemployment nor the natural rate of unemployment.

The correct answer is A

Explanation:

Structural unemployment happens when labor supplied exceeds the quantity of labor demanded.  There is no match on the number of individuals who want to enter the labor life or work and the number of jobs available. in the job market  Unions establish standards for educations, range of wages and working conditions that help workers and improve their living conditions.

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