Hello. You forgot to place the diagram necessary for this question to be answered. It is important that you always provide all the information necessary for your question to be answered as you deserve.
The diagram is in the figure attached below.
Answer:
B-C
Step-by-step explanation:
During the passage of an electrical impulse through the axon, it is necessary that the potential actions reach the end of the axon so that the neuron is able to release a neurotransmitter. As a result of this process, the inner part of a nerve is composed of potassium ions, while the outer part is composed of sodium ions.