Answer:
c)They are shared among many atoms.
Step-by-step explanation:
In metals the valence electrons are not localized to a single atom, instead the electron cloud is delocalized and is shared among many metallic cations. Metallic bonds involve the electrostatic force of attraction between the electrons and the metal cation. Metallic bond is different from ionic or covalent bond. In ionic bond there is transfer of electron from the metal to the nonmetal and in covalent bonds electrons are shared between two nonmetals.