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: Medicine
[{'content': 'What is the cause of hyperkalemia in chronic kidney failure \nSelect and explain. \nA. Release from cells, B. Hyperinsulinemia, C. Decreased excretion, D. Hyperaldosteronism', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Answer- C. Decreased excretion', 'role': 'assistant'}]