Suppose there are three power-generating plants, each of which has access to 5 different production processes. The table below summarizes the cost of each production process and the corresponding number of tons of smoke emitted each. 
For all three firms, the marginal cost of pollution abatement is:
Definitions:
Erectile Disorder
Inability to develop or maintain an erection due to insufficient blood flow to the penis.
Premature Ejaculation
A sexual dysfunction characterized by ejaculation that occurs with minimal sexual stimulation and before the person wishes it, leading to distress or interpersonal difficulty.
Sexual Climax
The peak of sexual excitement, characterized by strong feelings of pleasure and, typically, by ejaculation in males and vaginal contractions in females.
Sexual Partner
An individual with whom another individual engages in sexual activity.
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