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
True about carcinoma eosphagus is- 
Select and explain. 
A. Most common site is lower end, B. Both adeno and suqamous cell carcinoma occur, C. Commonest histology is adenocarcinoma, D. More common in females
B: Both adeno and suqamous cell carcinoma occur
Answer: B: Both adeno and suqamous cell carcinoma occur 
Explanation: Ans. is b i.e. Both adeno & squamous cell Ca occur