Which Statement About Metallic Bonding Is Not Correct

Which statement about metallic bonding is not correct?

A) In the presence of an electrical field, the electrons migrate toward the positive charge.
B) The valence electrons move freely around the nuclei, allowing conduction of heat.
C) The flexibility of metals results from the mobility of the electron charge, which allows the nuclei to be moved without disrupting the overall structure of the metal.
D) It describes the freely moving valence electrons as an "electron sea."
E) The metal nuclei behave as negatively charged ions.