Which public policy is most effective in addressing a negative externality by internalizing its social costs?

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Let the government assume control over the production of the product causing the externalityProhibit the manufacture of all products that generate negative externalitiesImpose a tax on the productProvide financial support to the product

Explanation

To correct a negative externality, the government can impose a tax on the product responsible, which helps incorporate the external costs into its market price. Other approaches like government control or outright bans are less practical, while subsidies would encourage production, worsening the externality.