According to the All-Or-None Law,____.​

According to the all-or-none law,____.​

A) all neurons produce an action potential at the same time or none at all
B) ​all of the extracellular sodium enters the axon, or none at all
C) ​once an axon reaches threshold, the amplitude and velocity of an action potential are nearly equal each time
D) neurons are either active all the time or not at all