After the depolarization phase of an action potential, the resting potential is restored by
A) the opening of sodium activation gates.
B) the opening of voltage-gated potassium channels and the closing of sodium channels.
C) a decrease in the membrane's permeability to potassium and chloride ions.
D) a brief inhibition of the sodium-potassium pump.
E) the opening of more voltage-gated sodium channels.
Answer: B
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