Concerning Environmental Regulation, Which of the Following Is True

Concerning environmental regulation, which of the following is true?

A) All types of environmental problems can be solved simply by the enforcement of individual property rights.
B) Environmental regulation cannot improve environmental quality.
C) Regulation nearly always leads to economically efficient outcomes.
D) Government regulation is subject to the same problems caused by lack of information and lack of incentives for economic efficiency that plagued centrally planned economies.