In the context of limiting pollution, command-and-control regulation _______. Select the correct answer below: usually draws distinctions between firms that would find it easy and inexpensive to meet a pollution standardor to reduce pollution even furtherand firms that might find it difficult and costly to meet the standard offers incentives to improve the quality of the environment beyond the standard set by a particular law usually requires the same standard for all polluters, and often the same pollution-control technology as well usually does not require that firms increase their costs by installing anti-pollution equipment