This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition and health, Subject name: Social & Preventive Medicine
[{'content': 'Most sensitive & specific test for sanguinane - \nSelect and explain. \nA. Fe Cl3, B. NO, C. HCI, D. Niic acid', 'role': 'user'}, {'content': "Answer: D \nExplanation: Nitric acid test and paper chromatography test is the test for detection of argemine oilREF.PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICINE.Editon-21.Page no.-608.", 'role': 'assistant'}]