Which of the Following Is a Distinctive Trait of Incentive

Which of the following is a distinctive trait of incentive approaches?

A) Incentive approaches impose a cost on pollution-causing activities, leaving it to individual polluters to decide how best to respond.
B) Incentive approaches attain social efficiency by requiring polluters to externalize the social costs of pollution externalities.
C) Incentive approaches does not take into account the benefits and costs of attaining environmental objectives.
D) Incentive approaches centralize pollution-control decisions.