Which One of the Following Statements Concerning Electrostatic Situations Is

Which one of the following statements concerning electrostatic situations is false?

A) E is zero everywhere inside a conductor.
B) Equipotential surfaces are always perpendicular to E.
C) Zero work is needed to move a charge along an equipotential surface.
D) If V is constant throughout a region of space, then E must be zero in that region.
E) No force component acts along the path of a charge as it is moved along an equipotential surface.