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
Multiple 'punched out holes' in skull are seen in: 
Select and explain. 
A. Hyperparathyroidism, B. Multiple myeloma, C. Thalassemia major, D. Acromegaly
B: Multiple myeloma
Answer: B: Multiple myeloma 
Explanation: Ans. Multiple myeloma