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: Unknown
[{'content': 'Which of the following metabolic abnormality is seen in multiple myeloma - \nSelect and explain. \nA. Hyponatremia, B. Hypokalemia, C. Hypercalcemia, D. Hyperphosphatemia', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans: C', 'role': 'assistant'}]