This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nerve Physiology, Subject name: Physiology
[{'content': 'During the Repolarisation phase of Action Potential of a Neuron, which among the following takes place? \nSelect and explain. \nA. Increased permeability to K+- ion, B. Decreased permeability to K+ ion, C. Increased permeability to Ca2+ ion, D. Increased permeability to Na+ ion', 'role': 'user'}, {'content': 'Answer: A \nExplanation: ANSWER: (A) Increased Permeability to K+ ionREF: See previous question for explanation', 'role': 'assistant'}]