Under what conditions does an axon produce an action potential? A. Whenever the membrane is hyperpolarized B. Whenever the membrane’s potential reaches the threshold C. Whenever the membrane is...

Under what conditions does an axon produce an action potential?
A. Whenever the membrane is hyperpolarized
B. Whenever the membrane’s potential reaches the threshold
C. Whenever the membrane is depolarized
D. Whenever the membrane’s potential reaches zero