This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Blood, Subject name: Medicine
True about Myeloma is all, EXCEPT 
Select and explain. 
A. Plasma cell clonal proliferation, B. Common after 50 yrs of age, C. Amyloidosis can occur, D. Protein casts in urine are made up of complete Ig chains
D: Protein casts in urine are made up of complete Ig chains
Answer: D: Protein casts in urine are made up of complete Ig chains 
Explanation: Ans. is 'd' i.e., protein casts in urine are made up of complete Ig chains Protein casts in urine are made up of light chains only Complete Ig chain comprises of both heavy chain & light chain but in Multiple myeloma there is excess production of light chains over heavy chains. These light chains are eliminated in urine as Bence Jones Protein *.