This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous (Neoplasia), Subject name: Surgery
Most common primary of metastatic bone tumor in a male is? 
Select and explain. 
A. Lung, B. Liver, C. Bone, D. Brain
A: Lung
Answer: A: Lung 
Explanation: ANSWER: (A) LungREF: Bailey & love 24th edition page 1330, Swartz's surgery 8th edition page 1330"Prostate, breast and lung primaries account for 80 % of all bone metastasis"Out of the options provided lung is the best possible answer