This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General physiology, Subject name: Physiology
[{'content': 'Which is electrical synapse? \nSelect and explain. \nA. Motor end plate, B. Gap junction, C. Tight junctions, D. Pores of kahn', 'role': 'user'}, {'content': "Answer: B \nExplanation: In electrical synapses, the membranes of the presynaptic and postsynaptic neurons come close together, and gap junctions form between the cells.(REF: GANONG'S REVIEW OF MEDICAL PHYSIOLOGY 23rd EDITION page no.115)", 'role': 'assistant'}]