Im not really sure on this one. However, I do think the answer is B. Since, moving the factory's away from neighborhoods would mean moving the source of pollution farther away.
Answer: Opportunity Costs represent the potential benefits an individual, investor or business misses out when choosing one alternative over another. For example: someone give up going to see a movie to study for a test in order to get a good grade
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The Grandfather Clause (1898–1915) The Grandfather Clause was a statute enacted by many American southern states in the wake of Reconstruction (1865-1877) that allowed potential white voters to circumvent literacy tests, poll taxes, and other tactics designed to disenfranchise southern blacks.
It’s a Petition. Hope this helps1