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: Surgery
Commonest site of metastasis of Wilm’s tumour is 
Select and explain. 
A. Bones, B. Lungs, C. Liver, D. Brain
B: Lungs
Answer: B: Lungs 
Explanation: Lungs is MC site for mets in wilms tumor.