This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Haematology, Subject name: Pathology
[{'content': 'Which of the following metabolic abnormality it seen in multiple myelona - \nSelect and explain. \nA. Hyponatremia, B. Hypokalemia, C. Hypercalcemia, D. Hyperphosphatemia', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Multiple myeloma is a plasma cell neoplasm commonly associated with lytic bone lesions, hypercalcemia, renal failure and acquired immune abnormalities. Bone resorption leads to hypercalcemia and Pathologic fractures. Reference : Robbins and Cotran Pathologic basis of disease.South Asia Edition volume 1.page no. 599', 'role': 'assistant'}]