Command and control environmental policy
The correct answer is option C. Mandating that coal-fired plants install scrubbers to clean emission.
Command and control environmental policy regulates the activities of industry by its legislation that ensures what is to be done which is permitted in the benefit of the environment.
The word ‘command’ implies the performance of quality standards as complied by the government.The word ‘control’ implies penalties that may arise from non-compliance of quality standards.
It means that industry have to adhere to quality standards as prescribed by the government in view of environmental benefit, non-compliance of which will result in penalties.
Thus, option C is correct as it implies the performance of quality standard by government i.e. mendating installation of scrubbers for coal-fired plants to clean emission to benefit the environment. So, option C is correct.