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 seen in multiple myeloma, except : \nSelect and explain. \nA. Lytic bone lesion, B. Hypercalcemia, C. Plasmacytosis of bone marrow > 2%, D. Decreased serum alkaline phosphatase activity', 'role': 'user'}, {'content': "Answer: C \nExplanation: Answer is C (Plasmocytosis > 2%): Diagnosis of Multiple Myeloma requires plasmacytosis of> 10%. The classic triad of myeloma is: a) Marrow plasmacytosis > 10% b) Lytic bone lesions c) Serum or urine 'M' component", 'role': 'assistant'}]