The primary means by which a neuron can communicate to a second ...

[geoffrey]

The primary means by which a neuron can communicate to a second neuron is by
A) the frequency of its action potentials.
B) the peak of the depolarization phase of an action potential.
C) the peak of the undershoot/hyperpolarization of an action potential.
D) varying how much neurotransmitter it releases for a given action potential.
E) remaining in the depolarization phase of the action potential for an extended interval.

[j_sun]

I recall doing this last year, it's A, bye bye!