Why are negative externalities unfair?
They allow firms to make profits, while forcing other people to bear some costs of production.
They are deceptive to consumers.
They are profits from foreign countries.
They are unfriendly.



Answer :

Negative externalities are the "collateral damage" of economics, meaning they are unintended consequences of certain economic forces. So the answer would be "They allow firms to make profits, while forcing other people to bear some costs of production."