This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Toxicology - 3, Subject name: Forensic Medicine
Hairs are preserved in which poisoning:- 
Select and explain. 
A. Arsenic, B. Manganese, C. Phosphorous, D. Alcohol
A: Arsenic
Answer: A: Arsenic 
Explanation: Poison Organ preserved Nux vomica Aconite Alcohol / any cerebral poison Metal (chronic) - arsenic, antimony, thallium Volatile poisoning (gas) - Spinal cord/ - Hea - Brain - Bone, hair, nail - Lungs