Use Figure: Externalities and Deadweight Loss I

Multiple Choice

Use Figure: Externalities and Deadweight Loss I. The figure shows the marginal private benefit, marginal social benefit, and marginal private cost for a good. The socially optimal price of the good is _____, and the socially optimal quantity is_____ units.
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Figure: Externalities and Deadweight Loss I

A) $25; 40
B) $30; 30
C) $25; 30
D) $30; 40