Which Statement A-D Regarding Semiconductors Is Not Correct

Multiple Choice

Which statement A-D regarding semiconductors is not correct?

A) An undoped semiconductor does not conduct electricity because it has a filled valence band and a vacant conduction band.
B) Doping silicon with phosphorous produces an n-type semiconductor.
C) An n-type semiconductor has electrons in its conduction band.
D) Doping silicon with gallium removes electrons from the valence band to enhance the conductivity.
E) Statements A-D all are correct.