When do externalities require government​ intervention? When is such intervention unlikely to be​ necessary? A. Governme

[answerhappygod]

When do externalities require government​ intervention? When issuch intervention unlikely to be​ necessary?
A. Government intervention is only necessary when theexternality has a negative impact. Tradeable emissions permits aretypically the most effective way to resolve an externality.
B. Intervention is unlikely to be necessary when property rightsare well specified and the externality affects relatively few​parties; bargaining can usually resolve the externality.
C. Intervention is unlikely to be necessary when property rightsare well specified and the externality affects a large number of​people; a class action lawsuit can usually resolve theexternality.
D. Government intervention is only necessary when theexternality has a negative impact. Imposing a fee is typically themost effective way to resolve a negative externality.