Which row shows the electrical conductivity of covalent compounds and ionic compounds in the solid state and when molten?
- Acovalent (solid: poor, molten: poor); ionic (solid: poor, molten: good)
- Bcovalent (solid: poor, molten: good); ionic (solid: poor, molten: good)
- Ccovalent (solid: good, molten: good); ionic (solid: poor, molten: poor)
- Dcovalent (solid: poor, molten: good); ionic (solid: good, molten: good)