This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
Resting membrane potential in nerve fibre 
Select and explain. 
A. Is equal to the potential of ventricular muscle fibre, B. Can be measured by surface electrodes, C. Increases as extra cellular K+ increases, D. Depends upon K+ equilibrium
D: Depends upon K+ equilibrium
Answer: D: Depends upon K+ equilibrium 
Explanation: D i.e. Depends on potassium ion equilibrium