Not Move Across Axons - Option B
Ions move across axons because the ions flow beyond the layer inside the cell or outside the cell. However, the action potential movement is from the soma which is the cell body to the bouton which is the end of the axon. The neuron keeps a resting membrane potential because inside example the neuron of potassium (K+), the potassium has great consistency.
There is a concentration gradient endeavoring to push potassium outside the cell. Alike powers will try to move sodium ions inside the neuron.