Ion Concentration Differences Produce an Action Potential Creating a Signal

Multiple Choice

Ion concentration differences produce an action potential creating a signal.The difference between a weak signal and an intense signal is

A) the action potential is graduated and a weak signal causes a small change in polarity.
B) weak stimuli only open sodium gates,strong signal also open potassium gates.
C) the frequency at which an axon fires.
D) a strong signal does not allow repolarization but sends a constant flow of ions.
E) All of the choices are correct.