This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: miscellaneous, Subject name: Pathology
The most common fixative used in pathology is? 
Select and explain. 
A. Gluteraldehyde, B. Alcohol, C. Formaldehyde, D. Picric acid
C: Formaldehyde
Answer: C: Formaldehyde 
Explanation: The most commonly used fixative in histology is formaldehyde. It is usually used as a 10% neutral buffered formalin (NBF), that is approx HARSH MOHAN Text book of pathology 6th edition pg no 10