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': 'After hyperpolarisation phase of the action potential is due to \nSelect and explain. \nA. An outward calcium current, B. An inward chloride current, C. An outward potassium current, D. An outward sodium current', 'role': 'user'}, {'content': 'Answer: C \nExplanation: After hyperpolarisation Phase : Part of action potential below RMP\nIt is due to slow return of K+\xa0channels to closed', 'role': 'assistant'}]