[单选题]
Metallic bonding is ca(ba qr )ssd2.xekz/)p*c( ujf used by;3 6nhp nuem;k6yk l ;tui3g.j
A. the sharing of electrons by all atoms.
B. the transfer of electrons between atoms.
C. unequal charge distributions around neutral molecules.
D. atoms bonding to hydrogen molecules.
