Refer to the graph shown. There is a negative externality associated with the production of the good depicted. The socially efficient level of output is: 
Definitions:
Different Prices
The phenomenon that occurs when a seller sets varied prices for the same product in different markets or purchase contexts, often reflecting variations in demand elasticity.
Risk-Loving
A personality trait or behavior of individuals who prefer or seek out risk in their investment choices, with the potential for high returns.
Risk-Averse
A preference for guaranteed outcomes over those with uncertainty, indicating a desire to avoid risk.
Insurance
A financial product sold by insurance companies to safeguard the purchaser against the risk of loss, damage, or liability.
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