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
Guaiac test is used for - 
Select and explain. 
A. Pentosuria, B. Fructosuria, C. For occult blood in stool, D. Pancreatitis
C: For occult blood in stool
Answer: C: For occult blood in stool 
Explanation: Ans. is 'c' i.e., For occult blood in stool