Why Don't the Electrodes of a Fuel Cell Deteriorate the Way

Multiple Choice

Why don't the electrodes of a fuel cell deteriorate the way the electrodes of a battery do?

A) As long as fuel is supplied,fuel cells don't run down,but car batteries die when the electron-producing chemicals are consumed.
B) Fuel cell electrodes are made of graphite,which does not deteriorate.
C) Fuel cell electrodes are self-replenishing thanks to the KOH-containing paste.
D) Fuel cell do not use electrodes,so there are none to deteriorate.