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 histologically resembles ? 
Select and explain. 
A. Sq. cell type, B. Schirrhous type, C. Columnar cell type, D. All
B: Schirrhous type
Answer: B: Schirrhous type 
Explanation: Ans. is 'b' i.e. Schirrhous type