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
All of the following are minor criteria for multiple rnyeloma except - 
Select and explain. 
A. Plasmacytosis 20%, B. Multiple lytic lesion, C. IgA < 100 mg/di and IgG < 600 mg/dl, D. Plasmacytoma on tissue biopsy
D: Plasmacytoma on tissue biopsy
Answer: D: Plasmacytoma on tissue biopsy 
Explanation: None