This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Disorders of Sodium and Potassium, Subject name: Pediatrics
[{'content': 'In which electrolyte abnormality, the following ECG finding is seen? \nSelect and explain. \nA. Hyponatremia, B. Hypernatremia, C. Hypokalemia, D. Hyperkalemia', 'role': 'user'}, {'content': 'Answer: C \nExplanation: ECG changes- flattened T wave, a depressed ST segment & appearance of a U wave- seen in Hypokalemia', 'role': 'assistant'}]