Answer: B. Pollution of air and water
Explanation:
Laissez-faire economic policies are instituted in countries where the government tries to stay out of regulating business as much as possible.
Should this happen, a situation where businesses chase profits with a disregard for anything else will ensue. They will try to cut down costs by any means necessary including by engaging in unhealthy labor practices and environmental sustainability because both these things require more money to be spent when done right.
As a result of the reduced emphasis on environmental sustainability, there will be a massive pollution of air and water.