Answer Happy

During an action potential, the stage of repolarization of the
cell membrane is due to the
a.closing of sodium ion channels and opening of potassium ion
channels.
b.opening of sodium ion channels and the closing of potassium
ion channels.
c.working of the sodium/potassium ion pump.
d.closing of chloride ion channels and the opening of potassium
ion channels.
e.closing of potassium ion channels.