Environmentalists, Worried About Sulfur Dioxide in the Air, Pressure the Government

Environmentalists, worried about sulfur dioxide in the air, pressure the government to make it mandatory for bus manufacturers to modify the exhaust systems in buses. In this situation, _____.​

A) the benefits of the proposed requirements are more widespread than costs
B) the benefits and costs of the proposed requirements are equally widespread
C) the benefits of the proposed requirements are concentrated but costs widespread
D) the legislation involves both concentrated benefits and concentrated costs
E) the advantage conferred by government on some special- interest group requires higher income taxes