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
In bone biopsy decalcification and fixation is done simultaneously by? 
Select and explain. 
A. Nitric acid and formalin, B. Formic acid and Formanlin, C. EDTA and Formic acid, D. Nitric acid and EDTA
B: Formic acid and Formanlin
Answer: B: Formic acid and Formanlin 
Explanation: None