At the Height of the Action Potential

Multiple Choice

At the height of the action potential,

A) the interstitial fluid is more negatively charged than the cytoplasmic fluid.
B) the interstitial fluid is less negatively charged than the cytoplasmic fluid.
C) the interstitial fluid and the cytoplasmic fluid have the same charge.
D) all sodium and potassium ions rush out of the neuron.
E) both a and d occur.