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
[{'content': 'Which of the following statements is true for excitatory postsynaptic potentials (EPSP) \nSelect and explain. \nA. Are self propagating, B. Show all or none response, C. Are proportional to the amount of transmitter released by the presynaptic neuron, D. Are inhibitory at presynaptic terminal', 'role': 'user'}, {'content': 'Answer: C \nExplanation: EPSP is proportional to the amount of neurotransmitter released, so not an ‘all or none’ activity. \nIt is not self-propagating, nor does it have any action on presynaptic terminal.', 'role': 'assistant'}]