Which of the Following Statements Is True

Which of the following statements is true?

A) In the case of positive externalities,a private market will produce too little of the good compared with the socially efficient level of output.
B) In the case of positive externalities,a private market will produce too much of the good compared with the socially efficient level of output.
C) Negative externalities occur when benefits accrue to individuals not directly involved in the transaction.
D) Positive externalities occur when costs are imposed on individuals not directly involved in the transaction.
E) In the case of negative externalities,a private market will produce too little of the good compared with the socially efficient level of output.