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: Anatomy
Anal valve is found in which pa of anal canal ? 
Select and explain. 
A. Upper, B. Middle, C. Lower, D. At anus
A: Upper
Answer: A: Upper 
Explanation: Ans. is 'a' i.e., Upper