What accurately describes the changes that occur during the transmission of a nerve impulse along a neuron?

• A. Only chemical changes occur as the impulse moves along the neuron.
• B. The impulse is transmitted solely through mechanical changes within the neuron.
• C. Electrical changes occur due to the movement of ions, facilitating the impulse transmission.
• D. The impulse causes the neuron to physically move towards the target cell.

Answer: (C)