What does an electrochemical cell do?

Question

a. An electrochemical cell uses a spontaneous redox reaction to produce chemical energy.
b. An electrochemical cell uses a spontaneous redox reaction to produce optical energy.
c. An electrochemical cell uses a spontaneous redox reaction to produce electrical energy.
d. An electrochemical cell uses a spontaneous redox reaction to produce mechanical energy.

Answer 1

An electrochemical cell is a device that produces electricity from chemical reactions.  Answer (C) is correct.