With Regard to the "Cap and Trade" System for Trading

Multiple Choice

With regard to the "cap and trade" system for trading carbon credits, it is correct to say that

A) very little fraud has been uncovered in the system.
B) the system has proven to be very effective.
C) studies show that countries in Asia are not interested in the system.
D) companies in developing countries buy credits which they sell to companies in industrialized countries.
E) carbon credits essentially give companies the right to pollute the environment.