Suppose the market consists of 3 individuals: Citizen A, Citizen B and Citizen C. 
If the good shown on the graphs is a public good, then the marginal benefit of the 30ᵗʰ unit is:
Definitions:
Conflict
A situation or process that involves opposing actions or viewpoints, leading to a state of tension or disagreement.
Pressure
The application of force upon a surface by an object, fluid, etc., in contact with it or the stress or urgency of matters demanding attention.
Principal Types
Main or leading categories or kinds within a larger group or system.
Stress
A feeling of emotional or physical tension resulting from any event or thought that makes one feel frustrated, angry, or nervous.
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