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': 'True about hyperkalemia -a) Stop heart in systoleb) Insulin-Glucose is givenc) Serum potassium more than 5.2 mmol/Ld) ECG changes correlates with serum potassium \nSelect and explain. \nA. c, B. d, C. bc, D. ac', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]