A Positive Externality Results When

Multiple Choice

A positive externality results when

A) economists are sure that a good or service provides benefits to consumers.
B) someone pays for a good or service even though she is not directly affected by the production or consumption of it.
C) when people who live in one country benefit from the production of a good or service that occurs in another country.
D) people who are not directly involved in producing or paying for a good or service benefit from it.