What are externalities and public goods?

Externalities occur when one person's actions affect another person's well-being and the relevant costs and benefits are not reflected in market prices.

Explanation:

Most economic arguments for government intervention are based on the idea that the marketplace cannot provide public goods or handle externalities.

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Positive externalities and public goods are closely related concepts. Public goods have positive externalities, like police protection or public health funding. Most economic arguments for government intervention are based on the idea that the marketplace cannot provide public goods or handle externalities. Externalities occur when one person's actions affect another person's well-being and the relevant costs and benefits are not reflected in market prices.

Explanation:

I hope this helps

a and c?

i think it is a and c