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
[{'content': 'The most common fixative used in pathology is? \nSelect and explain. \nA. Gluteraldehyde, B. Alcohol, C. Formaldehyde, D. Picric acid', 'role': 'user'}, {'content': 'Answer: C \nExplanation: 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', 'role': 'assistant'}]