When Silicon Is Doped with Gallium, Electrical Conduction Increases Because

Multiple Choice

When silicon is doped with gallium, electrical conduction increases because ________

A) gallium has fewer valence electrons than silicon, so holes are created in the valence band of silicon.
B) gallium has more valence electrons than silicon, so electrons are added to the conduction band of silicon.
C) gallium causes electrons to be transferred from the valence band of silicon to the conduction band of silicon.
D) gallium causes electrons to be transferred from the conduction band of silicon to the valence band of silicon.
E) gallium is a better conductor of electricity than silicon.