What Happens to a Neuron Once the Inside Is Flooded

Multiple Choice

What happens to a neuron once the inside is flooded with positively charged sodium ions?

A) The sodium channels open, and positively charged sodium ions flow to the outside of the cell."
B) The potassium channels open, and negatively charged potassium ions flow to the inside of the cell."
C) The sodium channels open, and negatively charged sodium ions flow to the inside of the cell."
D) The potassium channels open, and positively charged potassium ions flow to the outside of the cell."