Refer to the graph shown, which shows the demand and supply for a new vaccine against the common cold. Suppose once vaccinated, a person cannot catch a cold or give a cold to someone else. At the competitively determined output level, the marginal social benefit will be: A) equal to P₀. B) less than P₀. C) greater than or less than P₀ depending on the income elasticity of demand and the effectiveness of the vaccine. D) greater than P₀.

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The Answer of Refer to the graph shown, which shows the demand and supply for a new vaccine against the common cold. Suppose once vaccinated, a person cannot catch a cold or give a cold to someone else. At the competitively determined output level, the marginal social benefit will be: A) equal to P₀. B) less than P₀. C) greater than or less than P₀ depending on the income elasticity of demand and the effectiveness of the vaccine. D) greater than P₀.

Refer to the Graph Shown, Which Shows the Demand and Supply