Refer to the graph shown. The amount of a tax sufficient to reduce quantity supplied to the level that individuals would have supplied had they included the cost in their decision on third parties is: 
Definitions:
Minimum Wage
The lowest legal salary that employers can pay to workers, established by government legislation.
Right-to-Work Laws
Legislation that prohibits union security agreements, ensuring that employment is not affected by membership or non-membership in a labor union.
Collective Bargaining
A process of negotiation between employers and a group of employees aimed at agreeing on working conditions, wages, and benefits.
Minimum Wage
The lowest legal salary that employers can pay their employees.
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