A resting neuron has all of the following conditions except A) the sodium-potassium pump operates to pump Na + out of the cell and K + into the cell B) the neuron is polarized C) the membrane potential is 70 mV D) the cytoplasm just inside the plasma membrane of the neuron is positive compared to the extracellular fluid just outside the membrane E) it is an excitable cell that can respond to a stimulus and transmit a nerve impulse.