Which of the following does notaccurately describe transistors? 

       A. Both NPN and PNP transistors consist of an emitter, base, and collector.   B. Both NPN and PNP transistors consist of a base composed of an N-type material.   C. Both NPN and PNP transistors consist of P-type and N-type material.   D. Both NPN and PNP transistors operate in the same manner but with interchanged terminals and opposite directions of voltage and current.