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: Forensic Medicine
A farmer was brought to the casualty with restlessness & agitation. Examination shows temp. 103° F, flushed face, pupils dilated and fixed. The diagnosis is - 
Select and explain. 
A. Datura poisoning, B. Organophosphorus poisoning, C. Diazepam poisoning, D. Opium poisoning
A: Datura poisoning
Answer: A: Datura poisoning 
Explanation: Among the given options, only datura causes dilatation of pupil. All the other features given in question are also seen in datura poisoning.