The correct option is A electrolytic cell
An electrolytic cell is a device used for electrolysis. The energy from an applied voltage is used to drive the redox reaction. Electrolytic process is the use of electrolysis to refine metals or purify compounds. In this process the volataic cell uses redox reaction to drive the electric current through an external circuit, which is called as electrolytic current.
An electrolytic cell has three component part: an electrolyte and two electrodes: cathode and anode. When external voltage is applied to electrodes, the ions in the electrolyte are attracted to an electrode with opposite charge, here charge transfering takes place (redox reaction).