This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Anatomy
Most common site of metastasis in cholangiocarcinoma 
Select and explain. 
A. Liver, B. Bones, C. Lung, D. Pancreas
A: Liver
Answer: A: Liver 
Explanation: Distant metastasis occurs in one third of patients Most common site is liver, lung or mediastinum, peritoneum Ref: Sabiston 20th edition Pgno :1514-1518