What is the basis of similarities and differences between metallic and ionic crystals?

Options

1. ABoth involve the sharing of electrons between atoms.
2. BSimilarities arise from the arrangement of charged ions, while differences arise from the type of bonding (ion
3. CSimilarities arise from their color, while differences arise from their electrical conductivity.
4. DSimilarities arise from their molecular structures, while differences arise from their lattice arrangements.