This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: A.N.S., Subject name: Pharmacology
A patient presented in emergency with tachycardia, hyperthermia, bronchial dilatation and constipation. The person is likely to be suffering from overdose of: 
Select and explain. 
A. Atropine, B. Organophosphorus compound, C. Mushroom, D. Paracetamol
A: Atropine
Answer: A: Atropine 
Explanation: Ans. (A) Atropine(Ref: Modi's Medical jurisprudence and Toxicology. 23rd, 2005/92, 403, 429-430, Goodman and Gilman 12/e p234-235)These are the characteristic features of anti-cholinergic overdose.