Why do electrolytic cells require an electricity source to operate?

ANSWER
The redox reaction in the cell is non spontaneous and requires energy to occur.
option A
EXPLANATION
Electrolytic cell is an electrochemical cell that requires an external source of electrical energy to drive a chemical reaction.
The oxidation-reduction reaction in electrolytic cell would not occur spontaneously, so, there is a need for an external source (electrical energy) to cause the reaction to occur
Therefore, the redox reaction in the cell is non spontaneous and requires energy to occur.
The correct answer is option A