In the sequence of permeability changes for a complete action ...

[geoffrey]

In the sequence of permeability changes for a complete action potential, the first of these events that occurs is
A) the activation of the sodium-potassium "pump."
B) the inhibition of the sodium-potassium "pump."
C) the opening of voltage-gated sodium channels.
D) the closing of voltage-gated potassium channels.
E) the opening of voltage-gated potassium channels.

[j_sun]

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