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: Radiology
In early cases multiple myeloma presents with: 
Select and explain. 
A. No radiographic sign, B. Punched out lesions, C. Hair end on appearance, D. Step ladder appearance
A: No radiographic sign
Answer: A: No radiographic sign 
Explanation: None