This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Poisoning, Subject name: Forensic Medicine
Pupil dilatation is seen in poisoning with 
Select and explain. 
A. Dhatura, B. Ethyl alcohol, C. Barium carbonate, D. Barbiturates
A: Dhatura
Answer: A: Dhatura 
Explanation: Miosis: Opium, Morphine, Organophosphorus, Barbiturates Mydriasis: Alcohol, Datura, Carbon monoxide, Cocaine Ref: K.S.Narayan Reddy's Synopsis of Forensic Medicine and Toxicology, 29th edition, section 2-Toxicology .