The conductance in an electrolytic solution is due to the flow of ions which are produced by the process of decomposition.

The correct option is A True
In an electrolytic solutions, the charge carriers are not electrons like in the case of metals but ions which are produced by the process of decomposition of the solute.
For example, a solution of common salt (NaCl) in water conducts electricity due to the presence of $N{a}^{+}$ and $C{l}^{-}$ ions, that act as charge carriers.