This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Toxicology - 2, Subject name: Forensic Medicine
[{'content': 'Chalky white deposits in teeth are seen with which acid? \nSelect and explain. \nA. Carbolic acid, B. Oxalic acid, C. Nitric acid, D. Sulphuric acid', 'role': 'user'}, {'content': 'Answer: D \nExplanation: High yield points: Chalky white teeth-sulphuric acid Black tongue- sulphuric acid Yellow teeth- picric acid Green urine- phenol Golden hair- copper', 'role': 'assistant'}]