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: Pathology
[{'content': 'In bone biopsy decalcification and fixation is done simultaneously by? \nSelect and explain. \nA. Nitric acid and formalin, B. Formic acid and Formanlin, C. EDTA and Formic acid, D. Nitric acid and EDTA', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]