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
Cholangiocarcinoma most commonly metastases to- 
Select and explain. 
A. Liver, B. Bones, C. Lung, D. Pancrease
A: Liver
Answer: A: Liver 
Explanation: Answer- A. LiverMost, patients present with abnormal liver function tests or frank jaundiceDiagnosis by ultrasound, MDR-CT or MRCP scanningMost common site of metastasis is liver.