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
Drug of choice in Belladonna poisoning is - 
Select and explain. 
A. Neostigmine, B. Physostigmine, C. Methacholine, D. Atropine
B: Physostigmine
Answer: B: Physostigmine 
Explanation: Signs of symptoms, treatment, and postmortem appearances in Atropa belladonna (deadly nightshade) and Hyoscyamus niger are same as datura.
Specific antidote is physostigmine.