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': 'All of the .following are, true about multiple myeloma except - \nSelect and explain. \nA. Osteolytic bone disease, B. t (18-14) translocation, C. Light chain proliferation, D. Bence-Jones proteins in urine', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]