Option B: NaCl (aq)
There are two important factors that make a compound a good conductor of electricity that is its state and number of charge particles.
Here, the substances in solid state do not conduct electricity due to unavailability of free ions as movement of free ions in a substance is responsible for electricity conduction.
Therefore, NaCl(s) and [tex]C_{6}H_{12}O_{6}(s)[/tex] do not conduct electricity.
Now, out of NaCl(aq) and and [tex]C_{6}H_{12}O_{6}(aq)[/tex], NaCl(aq) is a good conductor of electricity because in aqueous solution, NaCl completely dissociates into [tex]Na^{+}[/tex] and [tex]Cl^{-}[/tex] ions. Due to the presence of these ions it is good conductor of electricity.
