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
Chalky white deposits in teeth are seen with which acid? 
Select and explain. 
A. Carbolic acid, B. Oxalic acid, C. Nitric acid, D. Sulphuric acid
D: Sulphuric acid
Answer: D: Sulphuric acid 
Explanation: High yield points: Chalky white teeth-sulphuric acid Black tongue- sulphuric acid Yellow teeth- picric acid Green urine- phenol Golden hair- copper