A Marginal External Cost of a Product Is Equal to

Multiple Choice

A marginal external cost of a product is equal to

A) what the producer has to pay to hire resources to produce another unit.
B) the cost someone other than the producer incurs when another unit is produced.
C) the cost the producer incurs to produce another unit.
D) what the consumer must pay when he or she buys the good or service.
E) None of these answers describes a marginal external cost.