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: Unknown
Ochronosis is due to chronic exposure to 
Select and explain. 
A. Carbolic acid, B. Phosphorus, C. Mercury salts, D. Iodine fumes
A: Carbolic acid
Answer: A: Carbolic acid 
Explanation: (Refer: Rajesh Bardale - Principles of Forensic medicine & Toxicology, 1st edition, pg no: 440)
Carbolic aci