Adrawback to implementing environmental taxes and fees is that it a. bring about full-cost pricing b. introduces environmentally beneficial technologies c. is easily administered by existing tax agencies d. penalizes low-income groups unless safety nets are provided e. encourages businesses to develop environmentally beneficial goods

A drawback to implementing environmental taxes and fees is that it penalizes low-income groups unless safety nets are provided. If companies and individuals are expected to pay environmental taxes and fees due to their products causing issues or if they add them to everyone, it can hurt those in the low-income bracket. Those who already have a hard time paying bills are extremely price sensitive and likely can't afford added taxes and fees to products or services. 

The answer is analogy approach

Answer(d) it has many buyers and many sellers and no single buyer or seller can influence the price;