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
End plate potential follows which law 
Select and explain. 
A. All or none law, B. Depolarisation, C. Hyperpolarisation, D. Propagation
B: Depolarisation
Answer: B: Depolarisation 
Explanation: End plate potential is always depolarizing whereas post synaptic potential can be EPSP or IPSP. 
Also, remember that end plate potential is a local potential. 
So it does not follow ‘all or none’ law nor does it self-propagate. It is always decremental.